Question

in Bulu and Tathagata can do a work separately in 20 days and 30 daye respectively. What amount of work they do togetherly in 1 day​

Answer 1

Answer:

A does (1/30)th of the work in a day.

B does (1/20)th of the work in a day.

A and B do (1/30)+(1/20) = (2/60)+(3/60) = 5/60 or 1/12th of the work in a day.

So A and B will complete the entire work in 12 days so in 4 days will they both have completed (1/3)rd of the whole work.

Answer 2

Answer:

Bulu can do 1/20 work in one day.

Tathagata can do 1/30 work in one day.

so, together they can do 1/20 + 1/30 = (3+2)/60 = 5/60 = 1/12

In one day the can do 1/12 th of the work