Question

if 20 men or 40 women or 80 boys do a task in 14 months. Half of the task can be done by 10 men, 10 women and 10 boys together in ?​

Answer 1

task done in 1 month by:-

10 men = 1/14 *1/2 = 1/28

10 women = 1/14 * 1/4 =1/56

10 boys = 1/14 * 1/8 = 1/112

their LCM

2*2*2*2*7=112

work done in one month by them together=)

men = 4/112

women = 2/112

boys = 1/112

then total work in one month =)

7/112

full work done in =) 112/7

= 16 months