SSC CGL 2017 PYQ — Question 12

SSC CGL Tier II Quant - 12/01/2017 • Quantitative Aptitude • Q12

Working 7 hours in a day, 4 men can do a piece of work in 8 days. Working 8 hours in a day, the required number of men to perform the same work in 4 days will be?

Show answer & explanation

Correct answer: C

Explanation

  The correct answer is option 3 i.e. 7

Understanding

Application

We have:

M1 = 4, D1 = 8 and H1 = 7

And

D2 = 4, H2 = 8 and M2 = ?

We know:

M1D1H1 = M2D2H2

(4 × 8 × 7) = (M2 × 4 × 8)

M2 = 7

Hence,

Required men = 7