 Quantitative Aptitude Questions for IBPS/RRB Exam Set – 8

Hello Aspirants. Welcome to Online Quantitative Aptitude section in AffairsCloud.com. Here we are creating question sample From all topics ,  which are Important for upcoming IBPS and RRB exams. We have included Some questions that are repeatedly asked in exams !!

1. P can do a work in 10days . Q is 50% more fast than P  then how many days P and Q together can do the work?
A)10/15
B)1/4
C)1/7
D)2/7
Explanation :
P one day work =1/10
Q one day work =(150/100)*(1/10) = 15/100
1/10 + 15/100 = 25/100 = 1/4

2.  If 2rs becomes rs 10 in 60 years at simple interest the rate is?
A)3 (1/3)%
B)3 (1/3)%
C)2 (2/4)%
D)6 (2/3)%
Explanation :SI = (8*100)/60*2 = 6(2/3)%
P=2 rs
S.I=10-2=8rs

3. Anita had a certain number of apples with her. 20% of those were rotten. She managed to sell 90% of the remaining apples. What percentage of the apples with Anita was unsold?
A)27
B)28
C)30
D)40
Explanation :
consider cp=100
So 20 are rotten  and 80 are good
Out of 80 90% are sold then =72
Rest is 28
So 28%

4. In a certain, the ratio of the number of students passed to the number of students failed is 7 : 4. Has 8 more students passed, the ratio of the number of students passed to the number of students failed would have been 9 : 4. Find the number of students who failed in the exam.?
A)10
B)22
C)16
D)32
Explanation :
Take no of student as 7x and 4x
Equation
(7x+8)/(4x) = 9/4
x= 4, no of students failed 4*4 = 16

5. Vijay marked his camera 50% above his cost price. He sold is after allowing a discount and still made a profit of 20%. What is the discount percentage he offered of it?
A)10%
B)33%
C)20%
D)15%
Explanation :
let cp= 100
Mp=150
profit 20%,MP = 120
150-120=30
D %= (30/150)*100 = 20%

6. P,Q and R start a business. P invests one-third of the the capital,Q invests one-fourth of the capital and the rest is invested by R. The share of R  in the total profit of Rs. 24000 is.
A)30000
B)32000
C)10000
D)12000
Explanation : Ratio of investment : 3:4:5
R share =(5/12)*24000 = 10000

7. Basket contains 3 blue, 2 green and 5 red balls.  If three balls are picked at random, what is the probability that at least one is red?
A)10/12
B)11/12
C)1/12
D)9/12
Explanation :

8. In how many different ways can the letters of the word ‘affaircloud ’ be arranged?
A)9979200
B)4536000
C)2768000
D)3421000
Explanation :11!/(2!*2!) = 9979200

9. What is the speed of a train?
I. The train crosses a pole in 5 seconds.
II. The train crosses a platform in 15 seconds.
III. The length of the train in metres is 120
A)1st and 3rd
B)2nd and 3rd
C)1st and 2nd and 3rd
D)None
Explanation :time and length is enough to calculate the speed of the train

10. (70^3) *(4^3)/(80^2) = ?
A)3420
B)3440
C)3430
D)3410