Jaslyn bought 2 kg of durians at $
r per kg and 3 kg of papayas at $4
r per kg.
- Find the amount that she paid for the fruits in terms of r.
- If r = 7, how much change did Mrs Jaslyn receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the durians
= 2 x
r = $2
r Amount paid for the papayas
= 3 x 4
r = $12
r Total amount paid for the fruits
= 2
r + 12
r = $14
r (b)
Amount that Mrs Jaslyn paid for the fruits
= 14
r = 14 x 7
= $98
Amount of change that Mrs Jaslyn received
= 100 - 98
= $2
Answer(s): (a) $14
r ; (b) $2