Question

4 girls can do a pice of work in 8days 3 boys can do a piece of work in 2 days and 5women can do a piece of work in 4days.who is least efficient

Answer 1

4 girls do ------------ in 8 days
in one day girls do 1/8part.
one girl in one day does 1/32 part

3boys do---------in 2 days
in one day do 1/2
1 boydoes 1/6

5women do -----in one day1/4
1 woman does 1/20

L.c.m of 32,6,20 =480

1/32=15/480,
1/6=80/480,
1/20=24/480
so least efficient is girl