Question

A can do a work in 10 days to gather with B. he can do it in 6 days. the work can be completed by B alone in ​

Answer 1

A completes work alone in 10 days and A+B complete work in 6 days.

$=>6\:days\:work\:of\:B =4\:days\: work \:of \:A$

$=>\frac{6}{4}×10=15\:days \:work \:of \:B = 10\:days$

$of \:work \:of \:A.$

So,B alone completes work in 15 days.