Fiona bought 5 kg of avocados at $
r per kg and 2 kg of papayas at $3
r per kg.
- Find the amount that she paid for the fruits in terms of r.
- If r = 7, how much change did Mrs Fiona receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the avocados
= 5 x
r = $5
r Amount paid for the papayas
= 2 x 3
r = $6
r Total amount paid for the fruits
= 5
r + 6
r = $11
r (b)
Amount that Mrs Fiona paid for the fruits
= 11
r = 11 x 7
= $77
Amount of change that Mrs Fiona received
= 100 - 77
= $23
Answer(s): (a) $11
r ; (b) $23