Question

If A can complete 7/10 of the work in 15 days and remaining work of was complete by A and B in 4 days. In how many days both can complete the whole work

Answer 1

Step-by-step explanation:

A completed 7/10 work in 15 days

Remaining work=1-7/10=3/10

Work done by A and B in 4 days =3/10

Work done by A and B in 1 day=(3/10)4=3/40

Therefore no. of days=1/(3/40)

=13.333 days