Dear Friends, SBI Clerk 2018 Notification has been released we hope you all have started your preparation. Here we have started New Series of Practice Materials specially for SBI Clerk 2018. Aspirants those who are preparing for the exams can use this “20-20” Quantitative Aptitude Questions.
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Question 1 of 20
1. Question
The average score of 45 students of a class is 78. If the last five students are removed, the average drops by 5 marks. If the five least marks are consecutive increasing integers, then find the least score.
Correct
Answer b
The average score of 45 students = 78
Total score of 45 students = 45*78 = 3810
If the last five students are removed, the average drops by 5 marks.
So,
The average score of 40 students = 73
Total score of 40 students = 40*73 = 2920
X+ (x+1) + (x+2) + (x+3) + (x+4) = 590
5x + 10 = 590
5x = 580
X = 116
Least score = 116
Incorrect
Answer b
The average score of 45 students = 78
Total score of 45 students = 45*78 = 3810
If the last five students are removed, the average drops by 5 marks.
So,
The average score of 40 students = 73
Total score of 40 students = 40*73 = 2920
X+ (x+1) + (x+2) + (x+3) + (x+4) = 590
5x + 10 = 590
5x = 580
X = 116
Least score = 116
Question 2 of 20
2. Question
A and B can separately complete a piece of work in 24 days and 27 days respectively. After how many days should B leave so that the work gets completed in 16 days, if both start working simultaneously?
Correct
Answer d
According to the question,
(16/24) + (x/27) =1
(2/3) + (x/27) =1
(X/27) =1 – (2/3)
(x/27) =1/3
X= 9 days
Incorrect
Answer d
According to the question,
(16/24) + (x/27) =1
(2/3) + (x/27) =1
(X/27) =1 – (2/3)
(x/27) =1/3
X= 9 days
Question 3 of 20
3. Question
The Present population of a city is 360000. It increases by 6% in the first year and decreased by 8% in the second year. What will be the population of a city after two years?
Correct
Answer b
Population = 360000 × 106/100 × 92/100 =351072
Incorrect
Answer b
Population = 360000 × 106/100 × 92/100 =351072
Question 4 of 20
4. Question
Raja scored 456 marks in an exam and Seema got 54 percent marks in the same exam which is 24 marks less than Raja. If the minimum passing marks in the exam is 34 percent, then how much more marks did Raja score than the minimum passing marks?
Correct
Answer a
Raja’s score = 456 marks, Seema = 54 % of total = Raja’s score – 24
Seema = 456-24 = 432 = 54% of total marks
(54/100)*x = 432
X = 432*(100/54) = 800
Minimum passing marks = 34 % of total marks
= > (34/100)*800 = 272
Raja scores 184 marks more than the passing marks.
Incorrect
Answer a
Raja’s score = 456 marks, Seema = 54 % of total = Raja’s score – 24
Seema = 456-24 = 432 = 54% of total marks
(54/100)*x = 432
X = 432*(100/54) = 800
Minimum passing marks = 34 % of total marks
= > (34/100)*800 = 272
Raja scores 184 marks more than the passing marks.
Question 5 of 20
5. Question
The average age of two persons is 52 years. 16 years back the ratio between their ages were 1 : 2, then what is the difference between present ages of these two persons?
Correct
Answer c
Let the present age of these two persons are ‘x’ & ‘y’
(x + y)/2 = 52
x + y = 104 —-> (1)
(x – 16)/(y – 16) = 1/2
2x – 32 = y – 16
2x – y = 16—-> (2)
By solving the equation (1) and (2), we get,
x = 40 years and y = 64 years
Difference = 64 – 40 = 24 years
Incorrect
Answer c
Let the present age of these two persons are ‘x’ & ‘y’
(x + y)/2 = 52
x + y = 104 —-> (1)
(x – 16)/(y – 16) = 1/2
2x – 32 = y – 16
2x – y = 16—-> (2)
By solving the equation (1) and (2), we get,
x = 40 years and y = 64 years
Difference = 64 – 40 = 24 years
Question 6 of 20
6. Question
Directions (Q. 6-10): What value will come in the place of question mark (?) in the given questions?
(8/15) of (3/17) of (12/13) of 15470=?
Correct
Answer a
(8/15) of (3/17) of (12/13) of 15470= X
X= (8/15)*(3/17)*(12/13)*15470
X= 1344
Incorrect
Answer a
(8/15) of (3/17) of (12/13) of 15470= X
X= (8/15)*(3/17)*(12/13)*15470
X= 1344
Question 7 of 20
7. Question
Directions (Q. 6-10): What value will come in the place of question mark (?) in the given questions?
(26)2 × 6 ÷ 13 + 53 + 88 = ?3 – 204
Correct
Answer c
(26)2 × 6 ÷ 13 + 53 + 88 = x3 -204
(26*26*6)/13 +125 +88 = x3 -204
312 +125 +88 +204 = x3
X3 = 729
X= 9
Incorrect
Answer c
(26)2 × 6 ÷ 13 + 53 + 88 = x3 -204
(26*26*6)/13 +125 +88 = x3 -204
312 +125 +88 +204 = x3
X3 = 729
X= 9
Question 8 of 20
8. Question
Directions (Q. 6-10): What value will come in the place of question mark (?) in the given questions?
26 × 14 × 432 ÷ √2916 = x + 728
Correct
Answer d
(26 × 14 × 432) / 54 = x + 728
2912 -728 = x
X = 2184
Incorrect
Answer d
(26 × 14 × 432) / 54 = x + 728
2912 -728 = x
X = 2184
Question 9 of 20
9. Question
Directions (Q. 6-10): What value will come in the place of question mark (?) in the given questions?
5 7/8 + 9 3/16 – 7 4/9 = x + 3 2/3
Correct
Answer c
5 7/8 + 9 3/16 – 7 4/9 – 3 2/3 = x
(5+9 -7-3) (7/8 + 3/16 – 4/9 – 2/3) =x
4 [(126+27 -64-96)/144] =x
X= 4 (-7/144) = 569/144
X = 3 137/144
Incorrect
Answer c
5 7/8 + 9 3/16 – 7 4/9 – 3 2/3 = x
(5+9 -7-3) (7/8 + 3/16 – 4/9 – 2/3) =x
4 [(126+27 -64-96)/144] =x
X= 4 (-7/144) = 569/144
X = 3 137/144
Question 10 of 20
10. Question
Directions (Q. 6-10): What value will come in the place of question mark (?) in the given questions?
136% of 105 – 84% of 165 =?
Correct
Answer b
136% of 105 – 84% of 165 = X
142.8 – 138.6 =X
X= 4.2
Incorrect
Answer b
136% of 105 – 84% of 165 = X
142.8 – 138.6 =X
X= 4.2
Question 11 of 20
11. Question
Directions (Q. 11-15): What should come in place of question mark (?) in the following number series?
18, 54, 162, 486,?
Correct
Answer a
The pattern is, ÷ 1 × 3, ÷ 2 × 6, ÷ 3 × 9, ÷ 4 × 12
The answer is, 1458
(Or)
The series follows *3, *3, *3….
Incorrect
Answer a
The pattern is, ÷ 1 × 3, ÷ 2 × 6, ÷ 3 × 9, ÷ 4 × 12
The answer is, 1458
(Or)
The series follows *3, *3, *3….
Question 12 of 20
12. Question
Directions (Q. 11-15): What should come in place of question mark (?) in the following number series?
16, 896, 1336,? , 1666, 1721
Correct
Answer d
The pattern is, difference of 2 numbers /2
The answer is, 1556
Incorrect
Answer d
The pattern is, difference of 2 numbers /2
The answer is, 1556
Question 13 of 20
13. Question
Directions (Q. 11-15): What should come in place of question mark (?) in the following number series?
48, 47, 92, 273,? , 5435
Correct
Answer b
The pattern is, *1 -1, *2-2, *3-3, *4-4, *5 -5….
The answer is, 1088
Incorrect
Answer b
The pattern is, *1 -1, *2-2, *3-3, *4-4, *5 -5….
The answer is, 1088
Question 14 of 20
14. Question
Directions (Q. 11-15): What should come in place of question mark (?) in the following number series?
776, ? , 772, 785, 768, 787
Correct
Answer c
The pattern is, +7, -11, +13, -17, +19
The answer is, 783
Incorrect
Answer c
The pattern is, +7, -11, +13, -17, +19
The answer is, 783
Question 15 of 20
15. Question
Directions (Q. 11-15): What should come in place of question mark (?) in the following number series?
16, 33, 108, ? , 2334
Correct
Answer e
The pattern is, *2 + 12, *3 + 32, *4 + 52, *5 + 72
The answer is, 457
Incorrect
Answer e
The pattern is, *2 + 12, *3 + 32, *4 + 52, *5 + 72
The answer is, 457
Question 16 of 20
16. Question
Directions (Q. 16-20): Study the following table carefully and answer the questions given below it:
Production of Cement by Different Companies in Different Years (In Lakh Tonnes)
In which year, was the total production of cement by the companies A and D equal to the total production of E and G together?
Correct
Answer c
Total production of cement by the companies A and D in year 1994
= 50 + 35 = 85
The companies E and G in year 1994 = 22 + 63 = 85
Hence, year 1994 in the answer
Incorrect
Answer c
Total production of cement by the companies A and D in year 1994
= 50 + 35 = 85
The companies E and G in year 1994 = 22 + 63 = 85
Hence, year 1994 in the answer
Question 17 of 20
17. Question
Directions (Q. 16-20): Study the following table carefully and answer the questions given below it:
Production of Cement by Different Companies in Different Years (In Lakh Tonnes)
The average production of G in all the years is approximately what % of average production of C in all the years?
Correct
Answer d
The average production of G in all the years
= > 32 + 37 + 52 + 63 + 80 + 120 +123 + 129 = 636
The average production of C in all the years
= > 78 + 69 + 63 + 70 + 72 + 59 + 81 + 65 = 557
Required % = (636/557)*100 = 114. 18 % ≈ 114 %
Incorrect
Answer d
The average production of G in all the years
= > 32 + 37 + 52 + 63 + 80 + 120 +123 + 129 = 636
The average production of C in all the years
= > 78 + 69 + 63 + 70 + 72 + 59 + 81 + 65 = 557
Required % = (636/557)*100 = 114. 18 % ≈ 114 %
Question 18 of 20
18. Question
Directions (Q. 16-20): Study the following table carefully and answer the questions given below it:
Production of Cement by Different Companies in Different Years (In Lakh Tonnes)
How many companies have shown a continuous growth in the production for the given period?
Correct
Answer b
From table
It is shown, clearly that company E & G have shown continuous growth in production
Incorrect
Answer b
From table
It is shown, clearly that company E & G have shown continuous growth in production
Question 19 of 20
19. Question
Directions (Q. 16-20): Study the following table carefully and answer the questions given below it:
Production of Cement by Different Companies in Different Years (In Lakh Tonnes)
Find the ratio of total production of B, D and E in the year 1994 to the total production of A, C and F in the year 1998?
Correct
Answer a
The total production of B, D and E in the year 1994,
= > 23 + 35 +22 = 80
The total production of A, C and F in the year 1998,
= > 63 + 65 + 80 = 208
Required Ratio = 80: 208
= > 5: 13
Incorrect
Answer a
The total production of B, D and E in the year 1994,
= > 23 + 35 +22 = 80
The total production of A, C and F in the year 1998,
= > 63 + 65 + 80 = 208
Required Ratio = 80: 208
= > 5: 13
Question 20 of 20
20. Question
Directions (Q. 16-20): Study the following table carefully and answer the questions given below it:
Production of Cement by Different Companies in Different Years (In Lakh Tonnes)
The approximate percentage increase in the total production of all the companies in 1997 as compared to 1995 was?
The average score of 45 students of a class is 78. If the last five students are removed, the average drops by 5 marks. If the five least marks are consecutive increasing integers, then find the least score.
128
116
134
104
None of these
A and B can separately complete a piece of work in 24 days and 27 days respectively. After how many days should B leave so that the work gets completed in 16 days, if both start working simultaneously?
12 days
6 days
4 days
9 days
None of these
The Present population of a city is 360000. It increases by 6% in the first year and decreased by 8% in the second year. What will be the population of a city after two years?
465056
351072
418400
381344
None of these
Raja scored 456 marks in an exam and Seema got 54 percent marks in the same exam which is 24 marks less than Raja. If the minimum passing marks in the exam is 34 percent, then how much more marks did Raja score than the minimum passing marks?
184
192
178
166
None of these
The average age of two persons is 52 years. 16 years back the ratio between their ages were 1 : 2, then what is the difference between present ages of these two persons?
16 years
20 years
24 years
14 years
10 years
Directions (Q. 6-10): What value will come in the place of question mark (?) in the given questions?
(8/15) of (3/17) of (12/13) of 15470=?
1344
1287
1456
1173
None of these
(26)2 × 6 ÷ 13 + 53 + 88 = ?3 – 204
11
14
9
6
None of these
26 × 14 × 432 ÷ √2916 = x + 728
1568
3245
1780
2184
None of these
5 7/8 + 9 3/16 – 7 4/9 = x + 3 2/3
4 25/167
5 37/125
3 137/144
6 167/231
None of these
136% of 105 – 84% of 165 =?
5.6
4.2
7.8
6.4
None of these
Directions (Q. 11-15): What should come in place of question mark (?) in the following number series?
18, 54, 162, 486,?
1458
2134
1098
2890
None of these
16, 896, 1336,? , 1666, 1721
1421
1378
1489
1556
None of these
48, 47, 92, 273,? , 5435
2346
1088
3674
2980
None of these
776,? , 772, 785, 768, 787
776
812
783
804
None of these
16, 33, 108, ? , 2334
356
789
924
892
None of these
Directions (Q. 16-20): Study the following table carefully and answer the questions given below it:
Production of Cement by Different Companies in Different Years (In Lakh Tonnes)
In which year, was the total production of cement by the companies A and D equal to the total production of E and G together?
1992
1993
1994
1995
1996
The average production of G in all the years is approximately what % of average production of C in all the years?
126 %
145 %
137 %
114 %
None of these
How many companies have shown a continuous growth in the production for the given period?
1
2
3
4
5
Find the ratio of total production of B, D and E in the year 1994 to the total production of A, C and F in the year 1998?
5:13
6:17
2:11
4:15
None of these
The approximate percentage increase in the total production of all the companies in 1997 as compared to 1995 was?
11%
12%
13%
14%
15%
Answers:
Answer b
The average score of 45 students = 78
Total score of 45 students = 45*78 = 3810
If the last five students are removed, the average drops by 5 marks.
So,
The average score of 40 students = 73
Total score of 40 students = 40*73 = 2920
X+ (x+1) + (x+2) + (x+3) + (x+4) = 590
5x + 10 = 590
5x = 580
X = 116
Least score = 116
Answer d
According to the question,
(16/24) + (x/27) =1
(2/3) + (x/27) =1
(X/27) =1 – (2/3)
(x/27) =1/3
X= 9 days
Answer b
Population = 360000 × 106/100 × 92/100 =351072
Answer a
Raja’s score = 456 marks, Seema = 54 % of total = Raja’s score – 24
Seema = 456-24 = 432 = 54% of total marks
(54/100)*x = 432
X = 432*(100/54) = 800
Minimum passing marks = 34 % of total marks
= > (34/100)*800 = 272
Raja scores 184 marks more than the passing marks.
Answer c
Let the present age of these two persons are ‘x’ & ‘y’
(x + y)/2 = 52
x + y = 104 –à (1)
(x – 16)/(y – 16) = 1/2
2x – 32 = y – 16
2x – y = 16–à (2)
By solving the equation (1) and (2), we get,
x = 40 years and y = 64 years
Difference = 64 – 40 = 24 years
Directions (Q. 6-10):
Answer a
(8/15) of (3/17) of (12/13) of 15470= X
X= (8/15)*(3/17)*(12/13)*15470
X= 1344
Answer c
(26)2 × 6 ÷ 13 + 53 + 88 = x3 -204
(26*26*6)/13 +125 +88 = x3 -204
312 +125 +88 +204 = x3
X3 = 729
X= 9
Answer d
(26 × 14 × 432) / 54 = x + 728
2912 -728 = x
X = 2184
Answer c
5 7/8 + 9 3/16 – 7 4/9 – 3 2/3 = x
(5+9 -7-3) (7/8 + 3/16 – 4/9 – 2/3) =x
4 [(126+27 -64-96)/144] =x
X= 4 (-7/144) = 569/144
X = 3 137/144
Answer b
136% of 105 – 84% of 165 = X
142.8 – 138.6 =X
X= 4.2
Directions (Q. 11-15):
Answer a
The pattern is, ÷ 1 × 3, ÷ 2 × 6, ÷ 3 × 9, ÷ 4 × 12
The answer is, 1458
(Or)
The series follows *3, *3, *3….
Answer d
The pattern is, difference of 2 numbers /2
The answer is, 1556
Answer b
The pattern is, *1 -1, *2-2, *3-3, *4-4, *5 -5….
The answer is, 1088
Answer c
The pattern is, +7, -11, +13, -17, +19
The answer is, 783
Answer e
The pattern is, *2 + 12, *3 + 32, *4 + 52, *5 + 72
The answer is, 457
Directions (Q. 16-20):
Answer c
Total production of cement by the companies A and D in year 1994
= 50 + 35 = 85
The companies E and G in year 1994 = 22 + 63 = 85
Hence, year 1994 in the answer
Answer d
The average production of G in all the years
= > 32 + 37 + 52 + 63 + 80 + 120 +123 + 129 = 636
The average production of C in all the years
= > 78 + 69 + 63 + 70 + 72 + 59 + 81 + 65 = 557
Required % = (636/557)*100 = 114. 18 % ≈ 114 %
Answer b
From table
It is shown, clearly that company E & G have shown continuous growth in production
Answer a
The total production of B, D and E in the year 1994,
= > 23 + 35 +22 = 80
The total production of A, C and F in the year 1998,
