Question

A man can do a piece of work in 10 hours while a woman can do it in 12 hours . If both work for 3 hours , what fractions of the work will remain unfinished ? Viedo

Answer 1

Answer:

man-10

woman-12

both together- 10*12/10+12=120/22=5.56hour

in 3 hour 1/2 work remains (approx)