At a shop, a box of muffins is sold at $18. For every $20 spent, a customer is given 2 free hongbao packets. Mrs Glen bought 4 boxes of muffins.
- How much did Mrs Glen pay?
- How many hongbao packets did she get?
(a)
Amount paid for 4 boxes of muffins
= 4 x 18
= $72
(b)
Number of sets
= 72 ÷ 20
= 3 r 12
Maximum number of sets = 3
Number of hongbao packets that Mrs Glen got
= 3 x 2
= 6
Answer(s): (a) $72; (b) 6