Quant Test for IBPS RRB 2018 Prelim Exam Set – 26

Institute of Banking Personnel Selection (IBPS) had released the official notification for the Common Recruitment Process for RRBs (CRP RRBs VII) for the recruitment of Group “A”-Officers (Scale-I, II & III) and Group “B”-Office Assistant (Multipurpose)

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The examination will be held in two phases i.e. Preliminary Examination and Main Examination. The RRB Scale I Preliminary Exam is scheduled on 11th, 12th & 18th of August 2018. And RRB Assistant Preliminary Exam is scheduled on 19th, 25th August & 1st September 2018. Details of the exam are as under:

Practice the questions so as to familiarize yourself with the pattern of questions to be asked in the exam. 

Directions(1-5): What will come in place of question mark “?” in the following questions.

1. 339% of 803 + 77.8% of 1107 = ?
   3002
   3578
   3451
   3774
   3770
   Option B
   339% of 803 + 77.8% of 1107 = ?
   = (340×800)/100 + (78×1100)/100
   = 2720 + 858 = 3578

    

2. 333.33 + 33.33 + 13 + 0.33 + 0.03 = ?
   330.4
   350.5
   300.3
   380.2
   385.3
   Option D
   333.33 + 33.33 + 13 + 0.33 + 0.03 = ?
   = 380.2

    

3. 525 – (13)² + 63 = (?)² + 95
   17
   12
   15
   18
   14
   Option D
   525 – (13)² + 63 = (?)² + 95
   (?)^2+95 = 525–169+63
   (?)^2 = 419 –95
   = √324
   = 18

    

4. (62.5 × 12 × 3) ÷ 9 – 34 = (?)^3
   8
   11
   6
   5
   2
   Option C
   (62.5 × 12 × 3) ÷ 9 – 34 = (?)^3
   (?)^3 = 250–34
   = (216)^1/3
   = 6

    

5. √4624 + √841 +1 = 14 × ?
   10
   13
   7
   5
   15
   Option C
   √4624 + √841 +1 = 14 ×?
   68 + 29 + 1 = 14 ×?
   = 7

    

6. Four examiners examine a certain number of answer papers in 10 days by working for five hours a day. For how many hours in a day would two examiners have to work in order to examine twice the number of answers papers in 20 days?
   20 hours
   10 hours
   30 hours
   50 hours
   40 hours
   Option B
   Let the required hours per day are t hours.
   10×4×5/n = 20×2×t/2n
   => t = 20/2
   => t = 10 hours

    

7. A man can row 40 Km upstream and 55 Km downstream in 13 h. Also, he can row 30 km upstream and 44 Km downstream in 10 h. Find the speed of the man in still water.
   8 km/h
   6 km/h
   5 km/h
   12 km/h
   10km/h
   Option A
   40/x + 55/y = 13 …. (i)
   30/x + 44/y = 10 …. (ii)
   Solving the equations (i) and (ii), we get x = 5 and y = 11
   speed of the man in still water
   = 1/2 (x + y) = 1/2 (5 + 11)
   = 16/2 = 8 km/h

    

8. Arun bought a computer with 15% discount on the labelled price. He sold the computer for Rs. 2880 with 20% profit on the labelled price. At what price did he buy the computer?
   3540
   2350
   2040
   2000
   3000
   Option C
   120% of labelled price = 2880
   85% of labelled price = (2880×85)/120
   = 2040

    

9. Find the amount of debt that will be discharged by 9 equal installments of Rs. 220 each, if the debt is due in 6 years at 3 % p.a.
   Rs. 1515
   Rs. 1005
   Rs. 1111
   Rs. 1400
   Rs. 1419
   Option E
   Amount of each installment
   = 100 p/[ 100n+ n(n−1)r/2] => 220 = 100p/[100 × 6 + 6(6−1)3/2] => 220 = 100p/(600 + 45)
   =>p = 220/100*645
   = Rs. 1419

    

10. A committee of five persons is to be chosen from a group of 10 people. The probability that a certain married couple will either serve together or not at all is?
    55/126
    43/126
    51/126
    51/120
    51/121
    Option C
    Five persons is to be chosen from a group of 10 people
    = 10C5 = 252
    Couple Serve together = 8C3 * 2C2 = 56
    Couple does not serve = 8C5 = 56
    Probability = 102/252
    = 51/126