Question

A contractor applied 150 men to build a house in 45 days after 9 days he was joined by 50 more men .How many day will the remaining work be finish?​

Answer 1

$\huge{\pink{\green {\sf\boxed{ANSWER=36 days}}}}$

$\huge{\pink {\sf\underline{Step\: by\: step\: explanation}}}$

210 men can complete the remaining work in 48 days

So,we have to find out how many days 280 men can do (210+70 more men)

=210×48/280

=36

Therefore 280 men can complete the remaining work in 36 days.