At a shop, a bag of wafers is sold at $16. For every $20 spent, a customer is given 3 free keychains. Mrs Ethan bought 6 bags of wafers.
- How much did Mrs Ethan pay?
- How many keychains did she get?
(a)
Amount paid for 6 bags of wafers
= 6 x 16
= $96
(b)
Number of sets
= 96 ÷ 20
= 4 r 16
Maximum number of sets = 4
Number of keychains that Mrs Ethan got
= 4 x 3
= 12
Answer(s): (a) $96; (b) 12