Dear Readers, Find the aptitude test questions to crack latest bank exams. We regularly provide 20 aptitude test questions daily for students. Aspirants practice these questions on a regular basis to improve your score in aptitude section. Aspirants preparing for the exams can make use of this “20-20” Quantitative Aptitude Questions. Here we have started New Series of Practice Materials specially for IBPS RRB Assistant Prelims 2018. Aspirants those who are preparing for the exams can use this “20-20” Quantitative Aptitude Questions.
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Directions (6 – 10): What approximate value should come in place of question mark (?) in the following number series?
4, 6, 15, ? , 236.25
Correct
Answer: b)
The pattern is, ×1.5, ×2.5, ×3.5, ×4.5,….
The answer is, 52.5
Incorrect
Answer: b)
The pattern is, ×1.5, ×2.5, ×3.5, ×4.5,….
The answer is, 52.5
Question 7 of 20
7. Question
Directions (6 – 10): What approximate value should come in place of question mark (?) in the following number series?
16, 28, 44, 92, ? , 2748
Correct
Answer: d)
The difference of difference is, ×8
The answer is, 396
Incorrect
Answer: d)
The difference of difference is, ×8
The answer is, 396
Question 8 of 20
8. Question
Directions (6 – 10): What approximate value should come in place of question mark (?) in the following number series?
4, 13, 29, 54, 90, 139, ?
Correct
Answer: a)
The pattern is, +3^{2}, +4^{2}, +5^{2}, +6^{2}, +7^{2}, +8^{2}
The answer is, 203
Incorrect
Answer: a)
The pattern is, +3^{2}, +4^{2}, +5^{2}, +6^{2}, +7^{2}, +8^{2}
The answer is, 203
Question 9 of 20
9. Question
Directions (6 – 10): What approximate value should come in place of question mark (?) in the following number series?
18, 20, 50, 180, 530, ?
Correct
Answer: c)
The pattern is, +(1^{3} +1), +(3^{3} +3), +(5^{3} +5), +(7^{3} +7), +(9^{3} +9),..
The answer is, 1268
Incorrect
Answer: c)
The pattern is, +(1^{3} +1), +(3^{3} +3), +(5^{3} +5), +(7^{3} +7), +(9^{3} +9),..
The answer is, 1268
Question 10 of 20
10. Question
Directions (6 – 10): What approximate value should come in place of question mark (?) in the following number series?
1122, 102, 714, 142.8, 428.4, ?
Correct
Answer: e)
The pattern is, ÷ 11, *7, ÷ 5, *3, ÷ 2,… (Prime no’s)
The answer is, 214.2
Incorrect
Answer: e)
The pattern is, ÷ 11, *7, ÷ 5, *3, ÷ 2,… (Prime no’s)
The answer is, 214.2
Question 11 of 20
11. Question
If 5 men or 6 women or 8 boys can finish a work in 120 days working 8 hours a day. The no of days taken by 10 men, 6 women and 12 boys working 12 hours a day will be?
Correct
Answer: d)
5 men = 6 women
6 women = 8 boys
10 men and 6 women and 12 boys = 12 women + 6 women + 9 women = 27 women
Women days hours
6 120 8
27 ? 12
(6*120*8) = (27* ? days *12)
X = (6*120*8)/(27*12) = 160/9 = 17 7/9 days
Incorrect
Answer: d)
5 men = 6 women
6 women = 8 boys
10 men and 6 women and 12 boys = 12 women + 6 women + 9 women = 27 women
Women days hours
6 120 8
27 ? 12
(6*120*8) = (27* ? days *12)
X = (6*120*8)/(27*12) = 160/9 = 17 7/9 days
Question 12 of 20
12. Question
P, Q, R started a business with investments of Rs. 1600, Rs. 2100 and Rs. 1500 respectively. After 8 months from the start of the business, Q and R invested additional amounts in the ratio of 3:5 respectively. If the ratio of total annual profit to R’s share in the annual profit was 3:1, then what was the additional amount invested by Q after 8 months?
Correct
Answer: c)
Let the ratio additional amount of Q and R be 3x and 5x
The ratio of total annual profit to R’s share = 3: 1
(62400+ 32x)/(18000+20x) = 3/1
= > 32x + 62400 = 60x+ 54000
= > 28x= 8400
= > x = 300
So, Q’s investment after 8 months = 3x = 3*300 = Rs. 900
Question 13 of 20
13. Question
A person purchased a mouse at Rs. x and keyboard at Rs. x+100. He sold the mouse at a profit of 20% and keyboard at a loss of 10%, and earned Rs. 70 as profit on the whole transaction then, what is the profit earned by selling the mouse?
So the profit earned by selling the mouse = 800*20/100 = Rs. 160
Question 14 of 20
14. Question
Three pipes X, Y, Z can fill a tank in 5 hours. After working at it together for 2 hours, Z is closed and X, Y can fill the remaining part in 4 hours. Find the number of hours taken by Z alone to fill the tank?
Correct
Answer: b)
Work done by all the three pipes in 2 hours = 2/5
Remaining work = 3/5
x, y can fill 3/5 part in 4 hours
x, y can fill 1 part in 4 *5/3 hours = 20/3 hours.
Z’s one day work = 1/5 – 3/20 = 1/20
Number of hours taken by Z alone to fill the tank = 20 hours
Incorrect
Answer: b)
Work done by all the three pipes in 2 hours = 2/5
Remaining work = 3/5
x, y can fill 3/5 part in 4 hours
x, y can fill 1 part in 4 *5/3 hours = 20/3 hours.
Z’s one day work = 1/5 – 3/20 = 1/20
Number of hours taken by Z alone to fill the tank = 20 hours
Question 15 of 20
15. Question
The population of a town before three years was 44000. In first year it increased by 15%, in the second year again increased by 20% and in the third year decreased by 10%. Find the difference between present population of the town and the population of the town before three years?
Correct
Answer: d)
Present population of the town
= > (44000)*(115/100)*(120/100)*(90/100)
= > 54648
Required difference = 54648 – 44000 = 10648
Incorrect
Answer: d)
Present population of the town
= > (44000)*(115/100)*(120/100)*(90/100)
= > 54648
Required difference = 54648 – 44000 = 10648
Question 16 of 20
16. Question
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart 1 shows percentage distribution of total number of students in six different schools and the pie chart 2 shows the percentage distribution of total number of girls in six different schools.
Total number of students = 65000 and the ratio of boys to girls is 7: 6.
What is the difference between the total number of girls and total number of boys studying in School B?
Correct
Answer: a)
Total number of students = 65000 and the ratio of boys to girls is 7: 6.
13’s = 65000
1’s = 5000
Total girls in all the given schools = 30000
Total boys in all the given schools = 35000
Total number of girls studying in School B
= > 30000*(14/100)
= > 4200
Total number of boys studying in School B
= > 13650 – 4200
= > 9450
Required difference = 9450 – 4200 = 5250
Incorrect
Answer: a)
Total number of students = 65000 and the ratio of boys to girls is 7: 6.
13’s = 65000
1’s = 5000
Total girls in all the given schools = 30000
Total boys in all the given schools = 35000
Total number of girls studying in School B
= > 30000*(14/100)
= > 4200
Total number of boys studying in School B
= > 13650 – 4200
= > 9450
Required difference = 9450 – 4200 = 5250
Question 17 of 20
17. Question
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart 1 shows percentage distribution of total number of students in six different schools and the pie chart 2 shows the percentage distribution of total number of girls in six different schools.
Total number of students = 65000 and the ratio of boys to girls is 7: 6.
Total number of girls studying in School A and C together is approximately what percentage of total number of boys studying in School D and E together?
Correct
Answer: c)
Total number of girls studying in School A and C together
= > 30000*(33/100) = 9900
Total students studying in School D
= > 65000*(11/100) = 7150
Total girls studying in School D
= >30000*(17/100) =5100
Total boys studying in School D
= > 7150 – 5100 = 2050
Total students studying in School E
= > 65000*(11/100) = 7150
Total girls studying in School E
= > 30000*(9/100) = 2700
Total boys studying in School D
= > 7150 – 2700= 4450
Total number of boys studying in School D and E
= > 2050 + 4450 = 6500
Required % = (9900/6500)*100 = 152.3 % = 152 %
Incorrect
Answer: c)
Total number of girls studying in School A and C together
= > 30000*(33/100) = 9900
Total students studying in School D
= > 65000*(11/100) = 7150
Total girls studying in School D
= >30000*(17/100) =5100
Total boys studying in School D
= > 7150 – 5100 = 2050
Total students studying in School E
= > 65000*(11/100) = 7150
Total girls studying in School E
= > 30000*(9/100) = 2700
Total boys studying in School D
= > 7150 – 2700= 4450
Total number of boys studying in School D and E
= > 2050 + 4450 = 6500
Required % = (9900/6500)*100 = 152.3 % = 152 %
Question 18 of 20
18. Question
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart 1 shows percentage distribution of total number of students in six different schools and the pie chart 2 shows the percentage distribution of total number of girls in six different schools.
Total number of students = 65000 and the ratio of boys to girls is 7: 6.
What is the total number of boys studying in School B, D, E and F together?
Correct
Answer: d)
Total number of boys studying in School B, D, E and F together,
= > 9450 + 2050 + 4450 + 3600
= > 19550
Incorrect
Answer: d)
Total number of boys studying in School B, D, E and F together,
= > 9450 + 2050 + 4450 + 3600
= > 19550
Question 19 of 20
19. Question
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart 1 shows percentage distribution of total number of students in six different schools and the pie chart 2 shows the percentage distribution of total number of girls in six different schools.
Total number of students = 65000 and the ratio of boys to girls is 7: 6.
Find the ratio between the total number of girls studying in School A, C, E together to that of boys studying in the same School?
Correct
Answer: b)
The total number of girls studying in School A, C, E
= > 3600 + 6300 + 2700
= > 12600
The total number of boys studying in School A, C, E
= > 6150 + 9300 + 4450
= > 19900
Required ratio = 12600: 19900 = 126: 199
Incorrect
Answer: b)
The total number of girls studying in School A, C, E
= > 3600 + 6300 + 2700
= > 12600
The total number of boys studying in School A, C, E
= > 6150 + 9300 + 4450
= > 19900
Required ratio = 12600: 19900 = 126: 199
Question 20 of 20
20. Question
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart 1 shows percentage distribution of total number of students in six different schools and the pie chart 2 shows the percentage distribution of total number of girls in six different schools.
Total number of students = 65000 and the ratio of boys to girls is 7: 6.
Only 60 % and 75 % of the students in School B and C is planned to go for an excursion. Find the total number of students didn’t go for any excursion in School B to that of Students in School C?
Correct
Answer: c)
Only 60 % and 75 % of the students in School B and C is planned to go for an excursion
Total number of students didn’t go for any excursion in School B and C,
Directions (6 – 10): What approximate value should come in place of question mark (?) in the following number series?
6) 4, 6, 15, ? , 236.25
a) 62
b) 52.5
c) 74
d) 86
e) 114.5
7) 16, 28, 44, 92, ? , 2748
a) 425
b) 536
c) 628
d) 396
e) 754
8) 4, 13, 29, 54, 90, 139, ?
a) 203
b) 316
c) 424
d) 578
e) 292
9) 18, 20, 50, 180, 530, ?
a) 856
b) 720
c) 1268
d) 1056
e) 924
10) 1122, 102, 714, 142.8, 428.4, ?
a) 278.6
b) 324.4
c) 378.8
d) 390.5
e) 214.2
11) If 5 men or 6 women or 8 boys can finish a work in 120 days working 8 hours a day. The no of days taken by 10 men, 6 women and 12 boys working 12 hours a day will be?
a) 15 2/7 days
b) 14 7/8 days
c) 16 2/5 days
d) 17 7/9 days
e) None of these
12) P, Q, R started a business with investments of Rs. 1600, Rs. 2100 and Rs. 1500 respectively. After 8 months from the start of the business, Q and R invested additional amounts in the ratio of 3:5 respectively. If the ratio of total annual profit to R’s share in the annual profit was 3:1, then what was the additional amount invested by Q after 8 months?
a) Rs. 1300
b) Rs. 1100
c) Rs. 900
d) Rs. 700
e) None of these
13) A person purchased a mouse at Rs. x and keyboard at Rs. x+100. He sold the mouse at a profit of 20% and keyboard at a loss of 10%, and earned Rs. 70 as profit on the whole transaction then, what is the profit earned by selling the mouse?
a) Rs. 210
b) Rs. 160
c) Rs. 240
d) Rs. 260
e) None of these
14) Three pipes X, Y, Z can fill a tank in 5 hours. After working at it together for 2 hours, Z is closed and X, Y can fill the remaining part in 4 hours. Find the number of hours taken by Z alone to fill the tank?
a) 18 hours
b) 20 hours
c) 15 hours
d) 10 hours
e) None of these
15) The population of a town before three years was 44000. In first year it increased by 15%, in the second year again increased by 20% and in the third year decreased by 10%. Find the difference between present population of the town and the population of the town before three years?
a) 10864
b) 10468
c) 10846
d) 10648
e) None of these
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart 1 shows percentage distribution of total number of students in six different schools and the pie chart 2 shows the percentage distribution of total number of girls in six different schools.
Total number of students = 65000 and the ratio of boys to girls is 7: 6.
16) What is the difference between the total number of girls and total number of boys studying in School B?
a) 5250
b) 4800
c) 4650
d) 5500
e) None of these
17) Total number of girls studying in School A and C together is approximately what percentage of total number of boys studying in School D and E together?
a) 140 %
b) 125 %
c) 152 %
d) 110 %
e) 95 %
18) What is the total number of boys studying in School B, D, E and F together?
a) 17400
b) 18250
c) 16600
d) 19550
e) None of these
19) Find the ratio between the total number of girls studying in School A, C, E together to that of boys studying in the same School?
a) 133: 181
b) 126: 199
c) 117: 173
d) 141: 219
e) None of these
20) Only 60 % and 75 % of the students in School B and C is planned to go for an excursion. Find the total number of students didn’t go for any excursion in School B to that of Students in School C?