At a stationery kiosk, foolscaps are sold at $6 for 1 foolscap. For every 8 foolscaps a customer pays, an extra foolscap will be given free.
- How much will Mrs Loh pay for 16 foolscaps?
- What is the most number of foolscaps Mr Ang can get for $148?
(a)
Number of foolscaps in one set
= 8 + 1
= 9
Cost of a set of 9 foolscaps
= 8 x 6
= $48
Number of sets
= 16 ÷ 9
= 1 r 7
Amount that Mrs Loh paid
= 1 x 48 + 7 x 6
= 48 + 42
= $90
(b)
Maximum number of sets
= 148 ÷ 48
= 3 r 16
Number of foolscaps that can be bought with remaining money
= 16 ÷ 6
= 3
Maximum number of foolscaps
= 9 x 3 + 3
= 30
Answer(s): (a) $90; (b) 30