Question

Mark has a £5 note.

A litre of milk costs 80p
Mark buys as many lite cartons of milk as he can.
How much money will he have left over?

Answer 1

Mark has = rupee 5 note( 1 pound = 1 rupee)

A litre of milk has costs = 80 p (p= paise)

1 rupee = 100 paise

left over (a):

5*100 = 80x+a

500=80x+a

so to get it in the whole number(a):

500 =80x+20x

left over : 20 p