Question

Ram can finish a piece of work in 12 days . Rohan can do same in 20 days .Both of them started the work together. but Ram left after 5 days how many more days will be required to finish the remaining work?
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Answer 1

Step-by-step explanation:

ram can finish in 12 days then 12-5=7

Answer 2

Answer:

Ram takes 20 days to complete a piece of work.

Shyam takes 30 days to complete a piece of work.

Ram completes (1/20) of a piece of work in 1 day.

Shyam completes (1/30) of a piece of work in 1 day.

Together R and S complete (1/20) + (1/30) = (1/12) of a piece of work in 1 day.

(1/12) of a piece of work - 1 day

(12/12) of a piece of work - (12/12)/(1/12) = 12 days.

R and S take 12 days to complete a piece of work when they work together.

Step-by-step explanation:

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