At a supermarket, a box of cookies is sold at $19. For every $20 spent, a customer is given 2 free hongbao packets. Mrs Pierre bought 4 boxes of cookies.
- How much did Mrs Pierre pay?
- How many hongbao packets did she get?
(a)
Amount paid for 4 boxes of cookies
= 4 x 19
= $76
(b)
Number of sets
= 76 ÷ 20
= 3 r 16
Maximum number of sets = 3
Number of hongbao packets that Mrs Pierre got
= 3 x 2
= 6
Answer(s): (a) $76; (b) 6