At a shop, a bag of tarts is sold at $10. For every $30 spent, a customer is given 2 free keychains. Mrs Reggie bought 7 bags of tarts.
- How much did Mrs Reggie pay?
- How many keychains did she get?
(a)
Amount paid for 7 bags of tarts
= 7 x 10
= $70
(b)
Number of sets
= 70 ÷ 30
= 2 r 10
Maximum number of sets = 2
Number of keychains that Mrs Reggie got
= 2 x 2
= 4
Answer(s): (a) $70; (b) 4