At a shop, a box of biscuits is sold at $15. For every $20 spent, a customer is given 3 free pens. Mrs Pierre bought 3 boxes of biscuits.
- How much did Mrs Pierre pay?
- How many pens did she get?
(a)
Amount paid for 3 boxes of biscuits
= 3 x 15
= $45
(b)
Number of sets
= 45 ÷ 20
= 2 r 5
Maximum number of sets = 2
Number of pens that Mrs Pierre got
= 2 x 3
= 6
Answer(s): (a) $45; (b) 6