Question

15 upon 25 part of work is done in 120 days , then how much was done in 1 day ? ​

Answer 1

Step-by-step explanation:

The basic formula for solving is: 1/r + 1/s = 1/h

Let us take a case, say a person Hrithik

Let us say that in 1 day Hrithik will do 1/20th of the work and 1 day Dhoni will do 1/30th of the work. Now if they are working together they will be doing 1/20 + 1/30 = 5/60 = 1/12th of the work in 1 day. Now try to analyze, if two persons are doing 1/12th of the work on first day, they will do 1/12th of the work on second day, 1/12th of the work on third day and so on. Now adding all that when they would have worked for 12 days 12/12 = 1 i.e. the whole work would