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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Review
Question 1 of 20
1. Question
Directions (Q. 1 – 5): What should be the approximate value come in place of question mark (?).
∛15628 × (201 ÷ 8) = (?)²
Correct
Answer: b)
(?)² = ∛15628×(201÷8)
(∵∛15628≈ ∛15625≈25) ≈25×25.125≈25×25
∴ ? =√(25×25)=25
Incorrect
Answer: b)
(?)² = ∛15628×(201÷8)
(∵∛15628≈ ∛15625≈25) ≈25×25.125≈25×25
∴ ? =√(25×25)=25
Question 2 of 20
2. Question
Directions (Q. 1 – 5): What should be the approximate value come in place of question mark (?).
23% of 5783 + 57% of 8561=?
Correct
Answer: b)
? =23% of 5783+57% of 8561
= [(23×5783)÷100] + [(57×8561)÷100]
=1330.09+4879.77≈1330+4880=6210
Incorrect
Answer: b)
? =23% of 5783+57% of 8561
= [(23×5783)÷100] + [(57×8561)÷100]
=1330.09+4879.77≈1330+4880=6210
Question 3 of 20
3. Question
Directions (Q. 1 – 5): What should be the approximate value come in place of question mark (?).
345.01 × 224.99 ÷ (11 × 5) =?
Correct
Answer: a)
? =345.01×224.99÷ (11×5) ≈ 345×(225÷55)
=345 * 4 =1380
Incorrect
Answer: a)
? =345.01×224.99÷ (11×5) ≈ 345×(225÷55)
=345 * 4 =1380
Question 4 of 20
4. Question
Directions (Q. 1 – 5): What should be the approximate value come in place of question mark (?).
(4429 ÷ 44.3) × 18.75 – 289.59 =?
Correct
Answer: b)
? ≈ (4430 ÷ 44. 3) × 18.75 – 290
=100 × 18.75 – 290
= 1875 – 290 = 1585
Incorrect
Answer: b)
? ≈ (4430 ÷ 44. 3) × 18.75 – 290
=100 × 18.75 – 290
= 1875 – 290 = 1585
Question 5 of 20
5. Question
Directions (Q. 1 – 5): What should be the approximate value come in place of question mark (?).
(1 / 8) of 2768 + 2835.42 =? – 297
Correct
Answer: b)
? – 297 = (1/8) × 2768 + 2835.42
≈ 346 + 2835 = 3181
:. ? = 3181 + 297 = 3478
Incorrect
Answer: b)
? – 297 = (1/8) × 2768 + 2835.42
≈ 346 + 2835 = 3181
:. ? = 3181 + 297 = 3478
Question 6 of 20
6. Question
Directions (Q. 6- 10): What should come in place of question mark (?) in the following number series?
18, 10, 11, 17.5, 36, ?
Correct
Answer: b)
*0.5 +1, *1+1, *1.5+1, *2+1, *2.5+1
Incorrect
Answer: b)
*0.5 +1, *1+1, *1.5+1, *2+1, *2.5+1
Question 7 of 20
7. Question
Directions (Q. 6- 10): What should come in place of question mark (?) in the following number series?
86, 94, 78, 110, 46, ?
Correct
Answer: d)
+8, -16, +32, -64, +128
Incorrect
Answer: d)
+8, -16, +32, -64, +128
Question 8 of 20
8. Question
Directions (Q. 6- 10): What should come in place of question mark (?) in the following number series?
9, 10, 22, 69, ?, 1405
Correct
Answer: a)
*1+1, *2+2, *3+3, *4+4,*5+5
Incorrect
Answer: a)
*1+1, *2+2, *3+3, *4+4,*5+5
Question 9 of 20
9. Question
Directions (Q. 6- 10): What should come in place of question mark (?) in the following number series?
4, 7, 19, 49, 106, ?
Correct
Answer: d)
The difference of difference is, 9, 18, 27, 36..
Incorrect
Answer: d)
The difference of difference is, 9, 18, 27, 36..
Question 10 of 20
10. Question
Directions (Q. 6- 10): What should come in place of question mark (?) in the following number series?
17, 26, 51, 100, 181, ?
Correct
Answer: d)
+3^2, +5^2, +7^2, +9^2, +11^2
Incorrect
Answer: d)
+3^2, +5^2, +7^2, +9^2, +11^2
Question 11 of 20
11. Question
The ratio of the present age of Anu to that of her mother is 1: 2. The ratio of their ages 6 years hence would be 11:20. What was the ratio of their ages 9 years ago?
Correct
Answer: d)
Let the present age of Anu be x years and the present age of her mother be 2x years.
Then,
x +6/ 2x+6 = 11 / 20
After solving, x = 27
Age of Anu 9 years ago = 27 – 9 = 18 years
Age of Anu’s mother 9 years ago = 54 – 9 = 45 years
Required ratio = 18 : 45 = 2 : 5
Incorrect
Answer: d)
Let the present age of Anu be x years and the present age of her mother be 2x years.
Then,
x +6/ 2x+6 = 11 / 20
After solving, x = 27
Age of Anu 9 years ago = 27 – 9 = 18 years
Age of Anu’s mother 9 years ago = 54 – 9 = 45 years
Required ratio = 18 : 45 = 2 : 5
Question 12 of 20
12. Question
Raja invested a certain amount at the rate of 6 pcpa and obtained a simple interest of Rs.8730 at the end of 3 years. What amount of compound interest would he obtain on the same amount at the same rate of interest at the end of 2 years?
Correct
Answer: d)
Amount invested = 8730*100/6*3
= Rs.48500
Compound interest earned
= 48500[1 – 6/100)^{2} – 1]
= Rs.5994.60
Quicker Method:
Rate = 6 +6 + 6×6/100 = 12.36
CI = 48500 x 12.36% = 5994.60
Incorrect
Answer: d)
Amount invested = 8730*100/6*3
= Rs.48500
Compound interest earned
= 48500[1 – 6/100)^{2} – 1]
= Rs.5994.60
Quicker Method:
Rate = 6 +6 + 6×6/100 = 12.36
CI = 48500 x 12.36% = 5994.60
Question 13 of 20
13. Question
The ratio of the students in schools P, Q and R is 5:4:7. If the number of students in the schools is increased by 20%, 25% and 20% respectively, what would be the new ratio of the students in schools P, and R?
Correct
Answer: b)
When the numbers are increased the
Ratio becomes 5×120/100: 4×125/100: 7×120 / 100
= 30 : 25 : 42
Incorrect
Answer: b)
When the numbers are increased the
Ratio becomes 5×120/100: 4×125/100: 7×120 / 100
= 30 : 25 : 42
Question 14 of 20
14. Question
Rehman purchased a scooty for Rs.54000. He sold it at a loss of 8 per cent. With this money he again purchased another bike and sold it at a profit of 10 per cent. What is his overall loss/profit?
Correct
Answer: d)
First selling price = 54000 * 92 / 100 = Rs.49680
Second selling price = 49680 *110/100 = Rs.54648
Profit = 54648 – 54000 = Rs.648
Incorrect
Answer: d)
First selling price = 54000 * 92 / 100 = Rs.49680
Second selling price = 49680 *110/100 = Rs.54648
Profit = 54648 – 54000 = Rs.648
Question 15 of 20
15. Question
Car X travels at the speed of 65 kmph and reaches its destination in 8 hours. Car Y travels at the speed of 70 kmph and reaches its destination in 4 hours. What is the ratio of the distance covered by Car X to that by Car Y?
Correct
Answer: c)
Required ratio = 65 x 8 : 70 x 4 = 13 : 7
Incorrect
Answer: c)
Required ratio = 65 x 8 : 70 x 4 = 13 : 7
Question 16 of 20
16. Question
Directions (Q. 16–20) Study the following table carefully to answer the questions that follows:
The following table gives number of people in different villages and percentage of Men, Women and Children in these villages.
Village
Total No. of People
% of Men
% of Women
% of Children
L
1240
35
45
20
M
2140
45
30
25
N
1450
50
30
20
O
1680
65
20
15
P
2060
40
40
20
Q
1990
40
50
10
Which village has the least number of children?
Correct
Answer: c)
Directions (16 – 20):
Village
Total number of people
Number of men
Number of women
Number of children
L
1240
434
558
248
M
2140
963
642
535
N
1450
725
435
290
O
1680
1092
336
252
P
2060
824
824
412
Q
1990
796
995
199
Total
10560
4834
3790
1936
Village Q has least number of children’s ie., 199.
Incorrect
Answer: c)
Directions (16 – 20):
Village
Total number of people
Number of men
Number of women
Number of children
L
1240
434
558
248
M
2140
963
642
535
N
1450
725
435
290
O
1680
1092
336
252
P
2060
824
824
412
Q
1990
796
995
199
Total
10560
4834
3790
1936
Village Q has least number of children’s ie., 199.
Question 17 of 20
17. Question
Directions (Q. 16–20) Study the following table carefully to answer the questions that follows:
The following table gives number of people in different villages and percentage of Men, Women and Children in these villages.
Village
Total No. of People
% of Men
% of Women
% of Children
L
1240
35
45
20
M
2140
45
30
25
N
1450
50
30
20
O
1680
65
20
15
P
2060
40
40
20
Q
1990
40
50
10
What is the respective ratio of the number of women in Villages L and P together to the number of men in the same villages together?
Directions (Q. 1 – 5): What should be the approximate value come in place of question mark (?).
∛15628 × (201 ÷ 8) = (?)²
28
25
31
22
24
23% of 5783 + 57% of 8561=?
6460
6210
7210
7420
6630
345.01 × 224.99 ÷ (11 × 5) =?
1380
1315
1410
1420
1470
(4429 ÷ 44.3) × 18.75 – 289.59 =?
1485
1585
1425
1685
1365
(1 / 8) of 2768 + 2835.42 =? – 297
3528
3478
3472
3078
3178
Directions (Q. 6- 10): What should come in place of question mark (?) in the following number series?
18, 10, 11, 17.5, 36, ?
72
91
76
78
80
86, 94, 78, 110, 46, ?
101
91
145
174
170
9, 10, 22, 69, ?, 1405
280
142
352
432
272
4, 7, 19, 49, 106, ?
205
215
175
199
185
17, 26, 51, 100, 181, ?
235
278
315
302
333
The ratio of the present age of Anu to that of her mother is 1: 2. The ratio of their ages 6 years hence would be 11:20. What was the ratio of their ages 9 years ago?
3 : 5
2 : 7
1 : 4
2 : 5
None of these
Raja invested a certain amount at the rate of 6 pcpa and obtained a simple interest of Rs.8730 at the end of 3 years. What amount of compound interest would he obtain on the same amount at the same rate of interest at the end of 2 years?
Rs.5820
Rs.5949.6
Rs.5900
Rs.5994.6
None of these
The ratio of the students in schools P, Q and R is 5:4:7. If the number of students in the schools is increased by 20%, 25% and 20% respectively, what would be the new ratio of the students in schools P, and R?
5 : 5 :7
30 :25 :42
30 :20 :49
Can’t be determined
None of these
Rehman purchased a scooty for Rs.54000. He sold it at a loss of 8 per cent. With this money he again purchased another bike and sold it at a profit of 10 per cent. What is his overall loss/profit?
Loss of Rs.657
Profit of Rs.567
Loss of Rs.648
Profit of Rs.648
None of these
Car X travels at the speed of 65 kmph and reaches its destination in 8 hours. Car Y travels at the speed of 70 kmph and reaches its destination in 4 hours. What is the ratio of the distance covered by Car X to that by Car Y?
11 : 7
7 : 13
13 : 7
7 : 11
None of these
Directions (Q. 16–20) Study the following table carefully to answer the questions that follows:
The following table gives number of people in different villages and percentage of Men, Women and Children in these villages.
Village
Total No. of People
% of Men
% of Women
% of Children
L
1240
35
45
20
M
2140
45
30
25
N
1450
50
30
20
O
1680
65
20
15
P
2060
40
40
20
Q
1990
40
50
10
Which village has the least number of children?
L
N
Q
O
None of these
What is the respective ratio of the number of women in Villages L and P together to the number of men in the same villages together?
617:664
629:691
664 : 617
691 :629
None of these
What is the total number of women and children together in Village Q?
995
1184
1086
988
None of these
The total number of people from Village O is approximately what per cent of the total number of people from all the Villages together?
16
21
11
25
9
What is the total number of children from Villages M and N together?
785
825
855
795
None of these
Answers:
Directions (Q. 1 – 5):
Answer: b)
(?)² = ∛15628×(201÷8)
(∵∛15628≈ ∛15625≈25) ≈25×25.125≈25×25
∴ ? =√(25×25)=25
Answer: b)
? =23% of 5783+57% of 8561
= [(23×5783)÷100] + [(57×8561)÷100]
=1330.09+4879.77≈1330+4880=6210
Answer: a)
? =345.01×224.99÷ (11×5) ≈ 345×(225÷55)
=345 * 4 =1380
Answer: b)
? ≈ (4430 ÷ 44. 3) × 18.75 – 290
=100 × 18.75 – 290
= 1875 – 290 = 1585
Answer: b)
? – 297 = (1/8) × 2768 + 2835.42
≈ 346 + 2835 = 3181
:. ? = 3181 + 297 = 3478
Directions (Q. 6- 10):
Answer: b)
*0.5 +1, *1+1, *1.5+1, *2+1, *2.5+1
Answer: d)
+8, -16, +32, -64, +128
Answer: a)
*1+1, *2+2, *3+3, *4+4,*5+5
Answer: d)
The difference of difference is, 9, 18, 27, 36..
Answer: d)
+3^2, +5^2, +7^2, +9^2, +11^2
Answer: d)
Let the present age of Anu be x years and the present age of her mother be 2x years.
Then,
x +6/ 2x+6 = 11 / 20
After solving, x = 27
Age of Anu 9 years ago = 27 – 9 = 18 years
Age of Anu’s mother 9 years ago = 54 – 9 = 45 years
Required ratio = 18 : 45 = 2 : 5
Answer: d)
Amount invested = 8730*100/6*3
= Rs.48500
Compound interest earned
= 48500[1 – 6/100)^{2} – 1]
= Rs.5994.60
Quicker Method:
Rate = 6 +6 + 6×6/100 = 12.36
CI = 48500 x 12.36% = 5994.60
Answer: b)
When the numbers are increased the
Ratio becomes 5×120/100: 4×125/100: 7×120 / 100
= 30 : 25 : 42
Answer: d)
First selling price = 54000 * 92 / 100 = Rs.49680
Second selling price = 49680 *110/100 = Rs.54648
Profit = 54648 – 54000 = Rs.648
Answer: c)
Required ratio = 65 x 8 : 70 x 4 = 13 : 7
Directions (16 – 20):
Village
Total number of people
Number of men
Number of women
Number of children
L
1240
434
558
248
M
2140
963
642
535
N
1450
725
435
290
O
1680
1092
336
252
P
2060
824
824
412
Q
1990
796
995
199
Total
10560
4834
3790
1936
Village Q has least number of children’s ie., 199.