allery10 men can finish painting a wall in 8 days. How many more men are needed to finish the same work in 4 days?
A10
B8
C5
D20
Answer & Solution
Correct answer: A. 10
1. Total work = 10 x 8 = 80 man-days.
2. To finish in 4 days, men needed = 80 / 4 = 20.
3. Extra men = 20 - 10 = 10.
_Source: RRB Group D CEN-02/2018 PYQ, Q.63._
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