Question

A mason can build a tank in 12 h. After working
for 6 h, he took the help of a boy and finished the
work in another 5 h. The time that the boy will
take alone to complete the work is?​

Answer 1

After working for 6 h, he took the help of a boy and finished the work in another 5 h. The time that the boy will take alone to complete the work is. work can be finished in 2×5 = 10 h.

Answer 2

Answer:

i hope this answer your help