Question

A Can do a piece of Work in 12 days B is 60%
more efficient than A. The number of days, it
takes B to do the same Work is?​

Answer 1

Step-by-step explanation:

B can do work 60% fater than A = 12-.6x12 = 12-7.2 = 4.8

B can do work in 4.8 days

Answer 2

A's 1 days' work = 1/12

∴ B's 1 days' work = 1.6/12= 16/120 = 2/15

∴ B shall complete the work in 15/2 days=

$7 \frac{1}{2} \: days$