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
   
   Answer

   Answer – B)1/4 days
   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)%
   
   Answer

   Answer – 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
   
   Answer

   Answer – B)28
   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
   
   Answer

   Answer – C)16
   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%
   
   Answer

   Answer – B)20%
   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
   
   Answer

   Answer – C) 10000
   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
   
   Answer

   Answer – B)11/12
   Explanation :
   
   
   
8. In how many different ways can the letters of the word ‘affaircloud ’ be arranged?
   A)9979200
   B)4536000
   C)2768000
   D)3421000
   
   Answer

   Answer – A)9979200
   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)1^st and 3^rd
   B)2^nd and 3^rd
   C)1^st and 2^nd and 3^rd
   D)None
   
   Answer

   Answer – A)1^st and 3^rd
   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
    
    Answer

    Answer – C)3430
    Explanation :
    (343000*64)/640 = 3430