Question

If one man or two women or three boys can do a work in 176 days then in how many days will one man
one woman and one boy together finish the work?​
please explain also

Answer 1

Part of work can be done in one day

By 1 man= 1/176

By 1 woman = 1/(2x176)= 1/352

By 1 chaild = 1/(3x176) = 1/528

So, part of work can be done one man,one woman, one boy together is

= 1/176 + 1/352 + 1/528 =(6+3+2)/1056

=11/1056

Therefore,they can do (complete) the work

In 1056/11 days = 96 days.

Thanks.