Question 4u:p

Once, 3 Friends went to a restaurent for lunch,

The bill was of Rs. 75/-,

They shared Rs.25/- each and given to waiter,

Waiter went to cash counter for bill and there is a discount of Rs 5/- on every 75/- bill,

Now waiter kept Rs. 2/- with him and returned Rs 1/- to each friends(i.e Rs.3/-).

The cost to each frnd is Rs. 24/- (i.e 24+24+24) now  and  Rs. 2/- are with waiter ..

Question:- Where is the Rest Rupee 1/-.(24+24+24+2=74/-)