Correct Answer - Option 4 : 6
Given:
30 persons can do a piece of work in 24 days
Formula Used:
\(\frac{{m1.d1.t1.e1}}{{w1.c1}} = \frac{{m2.d2.c2.e2}}{{w2.c2}}\) ,
m = number of men required to complete the work
d = number of days required to complete the work
t = time used for work in a single day
e = efficiency of man
w = amount of work
c = consumption of a man
Calculation:
\(\frac{{m1.d1.t1.e1}}{{w1.c1}} = \frac{{m2.d2.c2.e2}}{{w2.c2}}\)
Here we have compared only the number of men required
And the number of days required to complete the work
⇒ 30 × 24 = m2 × 20
⇒ 36
∴ 6 more men will be required
