Question

4 man and 6 woman can do work in 5 days and 3 men and 4 woman can do in 7 days find the time taken by 1 man and 1 woman alone:(​

Answer 1

Answer:

4M+3W=1/6 ===》》24M+18W=1 --------(1)

5M+7W=1/4 ===》》》20M+28W=1--------(2)

equating (1) &(2)

4M=10W

I.e. M=(5/2)W

Put M value in (1)

W=1/78 and M=5/156

Now for 1M+1W=(5/156)+(1/69)=7/156

So 1 man and 1 woman can do job in (156/7) days