Question

Ram can do a piece of work in 20 days, while Shyam can do it in 30 days . if both of them work together, in how many days will they be able to finish the work.​

Answer 1

Answer:

The time taken by them to finish the work together is 12 days.

Step-by-step explanation:

We will solve this question using Unit Method.

Let the total work be 1 unit.

Time taken by Ram to do 1 unit work = 20 days

Work done by Ram in 1 day = 1/20 units

Time taken by Shyam to do 1 unit work = 30 days

Work done by Shyam in 1 day = 1/30 units

Work done by them together in 1 day

= 1/20 + 1/30

= (30 + 20)/ 20*30    By taking LCM

= 50/600 units

Therefore, number of days required by them to complete 1 unit work

= 600/50 days

= 60/5 days

= 12 days