did the job al
A fisherman can knit a big fishing-net in 15 days while
his son can do the same job in 12 days. Together they
start knitting a net but after 5 days the fisherman has to
go but to the sea. How long will his son take to finish
knitting the fishing-net?
Answers
Answered by
3
Answer:
3 days
Step-by-step explanation:
fisherman can finish his work in 15days
In one day fisherman can complete 1/15 work
son can do work in 12days
in one day son can do 1/12 work
1 1 9 3
__ + __ = ___ = ___
15 12 60 20
together they can do 3/20 of the work
in 5 days they can finish 3/20 ×5 = 3/4 of the work
remaining work =1 - (3/4)= 1/4
son's can do 1/12 work in 1 day
he can do 1/4 work in 3 days
hope this helps
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