Quantitative Aptitude Questions for IBPS/RRB Exam Set – 6

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. In a division a student made mistake took 54 as  a divisor instead of 45. His answer was  10 the correct answer is?
   A.20
   B.12
   C.15
   D.9
   

   Answer

   Answer -B.12  
   Explanation :
   54×10=45 × X
   X = 540/45 = 12
   
   
   
2. 17 , 67 , ? , 1501 ,9055
   A.238
   B.267
   C.293
   D.444
   

   Answer

   Answer – C. 293
   Explanation :
   17×3+4^2 = 51+16 = 67
   67×4+5^2 = 268+25 = 293…..
   
   
   
3. P and Q can do a work in 12 days and 16 days respectively. If they work on alternate days, beginning with Q, then in how many days the work be completed?(approx)
   A.14
   B.12
   C.13
   D.11
   

   Answer

   Answer – A.14
   Explanation :
   2 days work Q and P = (1/12 + 1/16) = (12+16)/192
   = 7/48
   For 12 days = (6×7)/48 =7/8
   Remaining work = 1 – (7/8) = 1/8
   Q  1 day =16/8 = 2
   12+2 = 14
   
   
   
4. In what proportion must  water be mixed with the chemical to gain 20% by selling price?
   A.1/2
   B.2/3
   C.4/5
   D.1/5
   

   Answer

   Answer – D. 1/5
   Explanation :
   20% = 20/100=1/5
   
   
   
5. 2^y+2^x =12 and x+y=5 find x- y?
   A.1
   B.3
   C.8
   D.4
   

   Answer

   Answer – A.1
   Explanation :
   2 ³ + 2 ²  = 12
   Similarly 3-2 = 1
   
   
   
6. (7171+3854+1195)÷(892+214+543)=?
   A.13
   B.18
   C.3
   D.7
   

   Answer

   Answer – D. 7
   Explanation :
   12220÷1652 = 7.3 = 7
   
   
   
7. A number is being divided by 2,3,7 leaves a remainder of 3,1,2 resp. find the remainder if same number is divided by 42?
   A.30
   B.18
   C.17
   D.20
   

   Answer

   Answer – C. 17
   Explanation :
   2,3.7 are the factor of 42
   remainder=3+1*2+2*2*3
   =17
   
   
   
8. 84%*150 – ?%*380=63
   A.10.98
   B.20.76
   C.12.65
   D.16.57
   

   Answer

   Answer – D. 16.57
   Explanation :
   (84/100)150 – (?/100)380 = 63
   126 – (?/100)380 = 63
   -(?/100)380 = 63 – 126 = -63
   ? = (63×100)/380 = 16.57
   
   
   
9. Due to bad road , the speed of a car is reduced by 12 km/hr and it now take 2.5 hr more to cover the same distance of 600 find time taken now?
   A.10
   B. 20
   C .30
   D .40
   

   Answer

   Answer – A.10
   Explanation :
   600/t(t+2.5)=12/2.5
   Solve this t = 10
   
   
   
10. A bag contain 6 red and 4 blue ball. 2 ball are drawn at random .Find the probability that are the same colour ?
    A.12/143
    B.20/145
    C.7/15
    D.30/143
    

    Answer

    Answer – C. 7/15
    Explanation :
    6C₂+4C₂  =  [(6×5)/(1×2)] + [(4×3) / (1×2)]  = 15 + 6 = 21
    10C_{2  =} 10×9 / 2×1 = 45
    [6C₂+4C_2] / 10C₂ = 21/45 = 7/15