Question

Aandb can complete a work in 20 days.a alone works for 8 days and b completes the remaining work in 20 days by doing alone.in how much time b alone does the complete work?

Answer 1

20 days b do alone the work and by doing work alone. the work finished in 28 days more than doing work together and b work 12 days more than a and b work only 8 days