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 (1 – 5): What value should come in the place of question mark (?) in the following questions?
114 % of 1250 + (4/7) of 5712 = (?)^{2} + 65
Correct
Answer: d)
(114/100)*1250 + (4/7)*5712 = x^{2} +65
1425 + 3264 – 65 = x^{2}
X^{2} = 4624
X = 68
Incorrect
Answer: d)
(114/100)*1250 + (4/7)*5712 = x^{2} +65
1425 + 3264 – 65 = x^{2}
X^{2} = 4624
X = 68
Question 6 of 20
6. Question
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
384, 192, 288, 720, 2520, ?
Correct
Answer: e)
The pattern is, *1/2, *3/2, *5/2, *7/2, *9/2,..
The answer is, 11340
Incorrect
Answer: e)
The pattern is, *1/2, *3/2, *5/2, *7/2, *9/2,..
The answer is, 11340
Question 7 of 20
7. Question
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
1884, 472, 120, 33, ?
Correct
Answer: c)
The pattern is, ÷ 4 + 1, ÷ 4 + 2, ÷ 4 + 3, ÷ 4 + 4,..
The answer is, 12.25
Incorrect
Answer: c)
The pattern is, ÷ 4 + 1, ÷ 4 + 2, ÷ 4 + 3, ÷ 4 + 4,..
The answer is, 12.25
Question 8 of 20
8. Question
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
21, 25, 59, 193, 797, ?
Correct
Answer: a)
The pattern is, *1 + 2^{2}, *2+3^{2}, *3+ 4^{2}, *4 + 5^{2}, *5 + 6^{2},..
The answer is, 4021
Incorrect
Answer: a)
The pattern is, *1 + 2^{2}, *2+3^{2}, *3+ 4^{2}, *4 + 5^{2}, *5 + 6^{2},..
The answer is, 4021
Question 9 of 20
9. Question
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
18, 33, 52, 87, 186, ?
Correct
Answer: d)
The difference of difference is, 4^{1}, 4^{2}, 4^{3}, 4^{4},..
The answer is, 541
Incorrect
Answer: d)
The difference of difference is, 4^{1}, 4^{2}, 4^{3}, 4^{4},..
The answer is, 541
Question 10 of 20
10. Question
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
43, 171, 681, 2719, ?
Correct
Answer: b)
The pattern is, *4 -1, *4 -3, *4 -5, *4 – 7,..
The answer is, 10869
Incorrect
Answer: b)
The pattern is, *4 -1, *4 -3, *4 -5, *4 – 7,..
The answer is, 10869
Question 11 of 20
11. Question
A, B and C entered into a partnership by investing Rs. 20000, Rs. 25000 and Rs. 40000 respectively. After 4 months, A withdraws two-fifth of the amount and B invested Rs. 15000 more. And after 3 months C withdraws three-fifth of the amount. Find the total profit at the end of the year, if the share of B is Rs. 42000?
In a mixture of 120 liters, the ratio of milk to water is 2: 1. If this ratio is to be 4: 3, then what is the quantity of water needed to be added?
Correct
Answer: d)
Total Quantity = 120 liters
The ratio of milk to water = 2: 1
3’s = 120
1’s = 40
Milk = 80 liters, Water= 40 liters
According to the question,
80/(40 + x) = (4/3)
60 = 40 + x
X = 20
So 20 liters of water should be added.
Incorrect
Answer: d)
Total Quantity = 120 liters
The ratio of milk to water = 2: 1
3’s = 120
1’s = 40
Milk = 80 liters, Water= 40 liters
According to the question,
80/(40 + x) = (4/3)
60 = 40 + x
X = 20
So 20 liters of water should be added.
Question 13 of 20
13. Question
A can complete 2/5 of the work in 12 days. While A and B together can completes the same work in 12 days, find the time required by C who is twice efficient than B?
Correct
Answer: b)
A’s whole work,
(2/5)*A’s work = 12
A’s work = 30 days
(A+ B)’s work = 12 days
B’s one day work = (1/12) – (1/30) = 1/20
B’s whole work = 20 days
(B: C)’s efficiency = 1: 2
(B: C)’s day ratio = 2: 1
So, 2’s = 20
1’s = 10
C’s whole work = 10 days
Incorrect
Answer: b)
A’s whole work,
(2/5)*A’s work = 12
A’s work = 30 days
(A+ B)’s work = 12 days
B’s one day work = (1/12) – (1/30) = 1/20
B’s whole work = 20 days
(B: C)’s efficiency = 1: 2
(B: C)’s day ratio = 2: 1
So, 2’s = 20
1’s = 10
C’s whole work = 10 days
Question 14 of 20
14. Question
The average marks obtained by 60 students in a certain examination are 24. The average marks of passed students is 25 and the average marks of failed students is 5. Then find the total no of passed students?
Correct
Answer: c)
Let the number of passed students be x,
60*24 = 25x + (60 – x)*5
1440 = 25x + 300 – 5x
1440 – 300 = 20x
20x = 1140
X = 57
Total number of passed students = 57
= > 19 : 1
20’s = 60
1’s = 3
Total number of passed students = 19’s = 57
Incorrect
Answer: c)
Let the number of passed students be x,
60*24 = 25x + (60 – x)*5
1440 = 25x + 300 – 5x
1440 – 300 = 20x
20x = 1140
X = 57
Total number of passed students = 57
= > 19 : 1
20’s = 60
1’s = 3
Total number of passed students = 19’s = 57
Question 15 of 20
15. Question
A, B and C started a business in the ratio 3: 4: 5. If 20 % of total profit goes to the charity and C’s share is 18000, then find the share of A if there was no charity?
Correct
Answer: a)
C’s share = 18000
Profit distributed among A, B, C =18000*(12/5) = Rs. 43200
Total profit = (43200/80)*100 = 54000
A’s share if no charity was given= 54000*(3/12) = Rs. 13500
Incorrect
Answer: a)
C’s share = 18000
Profit distributed among A, B, C =18000*(12/5) = Rs. 43200
Total profit = (43200/80)*100 = 54000
A’s share if no charity was given= 54000*(3/12) = Rs. 13500
Question 16 of 20
16. Question
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart shows the total number of books in five different shops and the table shows the percentage of sold books and the ratio of comic and horror books among the total books.
Find the average number of comic books in shop P, R and T together?
Correct
Answer: a)
The total number of comic books in shop P, R and T together
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart shows the total number of books in five different shops and the table shows the percentage of sold books and the ratio of comic and horror books among the total books.
Total number of sold books in shop Q is approximately what percentage of the total number of sold books in shop S?
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart shows the total number of books in five different shops and the table shows the percentage of sold books and the ratio of comic and horror books among the total books.
Find the ratio between the total number of comic books in shop Q and S together to that of total number of comic books in shop P and T together?
Correct
Answer: d)
The total number of comic books in shop Q and S together
= > 7500*(18/100)*(3/5) + 7500*(20/100)*(2/5)
= > 810 + 600 = 1410
The total number of comic books in shop P and T together
= > 7500*(12/100)*(8/15) + 7500*(26/100)*7/13)
= > 480 + 1050 = 1530
Required ratio = 1410: 1530 = 47: 51
Incorrect
Answer: d)
The total number of comic books in shop Q and S together
= > 7500*(18/100)*(3/5) + 7500*(20/100)*(2/5)
= > 810 + 600 = 1410
The total number of comic books in shop P and T together
= > 7500*(12/100)*(8/15) + 7500*(26/100)*7/13)
= > 480 + 1050 = 1530
Required ratio = 1410: 1530 = 47: 51
Question 19 of 20
19. Question
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart shows the total number of books in five different shops and the table shows the percentage of sold books and the ratio of comic and horror books among the total books.
Total number of horror books in shop Q and S together is approximately what percentage more/less than the total number of books in shop T?
Correct
Answer: b)
Total number of horror books in shop Q and S together
= > 7500*(18/100)*(2/5) + 7500*(20/100)*(3/5)
= > 540 + 900 = 1440
Total number of books in shop T = 1950
Required % = [(1950 – 1440)/1950]*100 = 26 % less
Incorrect
Answer: b)
Total number of horror books in shop Q and S together
= > 7500*(18/100)*(2/5) + 7500*(20/100)*(3/5)
= > 540 + 900 = 1440
Total number of books in shop T = 1950
Required % = [(1950 – 1440)/1950]*100 = 26 % less
Question 20 of 20
20. Question
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart shows the total number of books in five different shops and the table shows the percentage of sold books and the ratio of comic and horror books among the total books.
Find the difference between the total number of horror books in shop Q, R and S together to that of total number of books sold in shop P?
Correct
Answer: a)
The total number of horror books in shop Q, R and S together
Directions (6 – 10): What value should come in the place of question mark (?) in the following number series?
6) 384, 192, 288, 720, 2520, ?
a) 8560
b) 6380
c) 7250
d) 9120
e) 11340
7) 1884, 472, 120, 33, ?
a) 15.75
b) 14
c) 12.25
d) 20
e) 21.25
8) 21, 25, 59, 193, 797, ?
a) 4021
b) 2593
c) 3125
d) 3897
e) None of these
9) 18, 33, 52, 87, 186, ?
a) 432
b) 678
c) 715
d) 541
e) None of these
10) 43, 171, 681, 2719, ?
a) 15274
b) 10869
c) 13540
d) 12780
e) None of these
11) A, B and C entered into a partnership by investing Rs. 20000, Rs. 25000 and Rs. 40000 respectively. After 4 months, A withdraws two-fifth of the amount and B invested Rs. 15000 more. And after 3 months C withdraws three-fifth of the amount. Find the total profit at the end of the year, if the share of B is Rs. 42000?
a) Rs. 90400
b) Rs. 95600
c) Rs. 88700
d) Rs. 102500
e) None of these
12) In a mixture of 120 liters, the ratio of milk to water is 2: 1. If this ratio is to be 4: 3, then what is the quantity of water needed to be added?
a) 15 liters
b) 18 liters
c) 24 liters
d) 20 liters
e) None of these
13) A can complete 2/5 of the work in 12 days. While A and B together can completes the same work in 12 days, find the time required by C who is twice efficient than B?
a) 24 days
b) 10 days
c) 16 days
d) 28 days
e) None of these
14) The average marks obtained by 60 students in a certain examination are 24. The average marks of passed students is 25 and the average marks of failed students is 5. Then find the total no of passed students?
a) 45
b) 54
c) 57
d) 44
e) None of these
15) A, B and C started a business in the ratio 3: 4: 5. If 20 % of total profit goes to the charity and C’s share is 18000, then find the share of A if there was no charity?
a) Rs. 13500
b) Rs. 15600
c) Rs. 17800
d) Rs. 14200
e) None of these
Directions (16 – 20): Study the following information carefully and answer the given questions:
Following pie chart shows the total number of books in five different shops and the table shows the percentage of sold books and the ratio of comic and horror books among the total books.
16) Find the average number of comic books in shop P, R and T together?
a) 710
b) 840
c) 650
d) 920
e) None of these
17) Total number of sold books in shop Q is approximately what percentage of the total number of sold books in shop S?
a) 105 %
b) 130 %
c) 80 %
d) 95 %
e) 70 %
18) Find the ratio between the total number of comic books in shop Q and S together to that of total number of comic books in shop P and T together?
a) 14: 23
b) 25: 36
c) 33: 37
d) 47: 51
e) None of these
19) Total number of horror books in shop Q and S together is approximately what percentage more/less than the total number of books in shop T?
a) 40 % less
b) 26 % less
c) 26 % more
d) 15 % more
e) 15 % less
20) Find the difference between the total number of horror books in shop Q, R and S together to that of total number of books sold in shop P?
a) 1740
b) 2150
c) 2360
d) 1570
e) None of these
Answers:
Direction (1-5)
1) Answer: d)
(1/17)*3893 + (3/14)*6328 + (171/100)*500 = x + 1335