Lynn bought 5 kg of pineapples at $
r per kg and 4 kg of papayas at $3
r per kg.
- Find the amount that she paid for the fruits in terms of r.
- If r = 5, how much change did Mrs Lynn receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the pineapples
= 5 x
r = $5
r Amount paid for the papayas
= 4 x 3
r = $12
r Total amount paid for the fruits
= 5
r + 12
r = $17
r (b)
Amount that Mrs Lynn paid for the fruits
= 17
r = 17 x 5
= $85
Amount of change that Mrs Lynn received
= 100 - 85
= $15
Answer(s): (a) $17
r ; (b) $15