3 dost khana kha rahay thay bil bana 75 rupay teno ne 25 25 rupay waiter ko diye manager ne 5 rupay concession kr diwaiter ne 2 rupay khud rakh liye or 1 1 1 teno ko wapas kr diya to her aik ne 24 24?

Actually that Rs.72/- includes the waiters tips too.. so the remaining Rs.3/- is actually what they have Re.1/- each

We should not add Rs.2/- to Rs.72/- instead, Rs.3/- should be added as that has been deducted from their bill and it gives the total amount which they have given to the waiter. And the Rs.2/-, which the waiter has taken becomes part of their bill or tips, which cannot be included.