Math, asked by kavvin0907, 4 months ago

A can do a work in 15 days and B in 20 days. If they work together for 4 days, find the fraction of work remaining.

Answers

Answered by surajitkundu8013
0

Answer:

Remaining work is 8/15 of a work.

Step-by-step explanation:

A can do a work in 15 days.

A can do 1/15 of a work in 1 day

B in 20 days.

B can do 1/20 of a work in 1 day

They together can do (1/15 + 1/20) of a work in 1 day

=(4×1)+(3×1)/60

=7/60 of a work in 1 day

If they work together for 4 days they can complete 4× (7/60) of a work

= 7/15 of a work

If Complete work is 1

then remaining work is 1- (7/15)

=15-7/15

=8/15 of a work

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