Question

the ratio of the rate of doing work for woman and man is 2:1 . six women complete a piece of work in 20 days.if 2women and 6men work together,then how many days will they complete he work?

Answer 1

6 w =20 days
1w =6*20=120 days
a/c qs , w= 2m
2m= 120
m= 240 .
take LCM of 120 and 240 we get 240 .
there for 1w= 240/120= 2 efficiency .
2w = 2*2 = 4 .
similarly , 1m = 240/240 =1 efficiency .
there for 6m = 6 efficiency .
,,, 2w+6m = 4+6 =10 efficiency out of 240 total works ...
there for to complt the total work of 2w +6m = 240/10 = 24 days ... ans

Answer 2

6w=20days

1w=6*20=120

w=2m

2m

m=240

Lcm

120,240

1w =240/120

=2w=2*2=4

1m=240/120=1

6m

2w+6m=4+6=10

=240

2w+6m =240/10

=24day