Question

A contractor undertakes to make a mall in 60 days and he
employs 30 men. After 30 days it is found that only one-
third of the work is completed. How many extre men should
he employ so that the work is completed on time?
A. 20 men
B. 25 men
C. 30 men
D. 40 men

Answer 1

Correct Answer - (c)
Let total work is w and it is given that one-third od the
work is completed after 30 days. Means
`M xx D = 30 xx 30 = W/3`, so total work `=30xx30xx3`
`2700 = 30 xx 30+(30+p) xx 30,` so we get
P= 30 (p=additional men)