Question

Ram and Arjun can do a piece of work in 12 days Arjun alone can finish it in 30 days in how many days can Ram alone finish the work​

Answer 1

Answer:

R+A=12days

(RAM+ARJUN) ka ak din ka kaam= 1/12

Arjun ka ak din ka kaam=1/30

Ram=1/12-1/30

=3/60

=1/20

=20days

Answer 2

Ram alone can finish the work in 20 days.

We can use the formula "work done = rate x time" to solve this problem.

Let's assume that Ram's and Arjun's rates of working are R and A respectively.

According to the given information:

Ram and Arjun together can finish the work in 12 days, so their combined rate of working is 1/12 of the work done per day.

(R+A) = 1/12

Arjun alone can finish the work in 30 days, so his rate of working is 1/30 of the work done per day.

A = 1/30

By substituting the value of A in the equation of combined rate, we can find the value of R

R = 1/12 - 1/30 = 3/60

So, Ram's rate of working is 3/60 of the work done per day.

To find the time taken by Ram alone to finish the work, we can use the formula "work done = rate x time"

Time taken by Ram alone to finish the work = Work/ Rate

time = 1 / (3/60) = 60/3 = 20 days

Therefore, Ram alone can finish the work in 20 days.

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