Question

Satish is 50% more efficient than Charan. They together
start the work and `7/12` th of work is left after 8 days. Find in
what time Charan alone will complete the whole work.
A. 36 days
B. 44 days
C. 50 days
D. 48 days

Answer 1

Correct Answer - (d)
Ratio of efficiency of Satish to charan is `3:2`
Let, In 8 days they copmplete `= (3+2)xx 8 = 40` units
So, total work `= 40 xx 12/5` units
Time taken by Charan alone to complete whole work
`= (40xx12)/(5xx2) = 48` days