Betty bought 5 kg of durians at $
y per kg and 4 kg of papayas at $2
y per kg.
- Find the amount that she paid for the fruits in terms of y.
- If y = 6, how much change did Mrs Betty receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the durians
= 5 x
y = $5
y Amount paid for the papayas
= 4 x 2
y = $8
y Total amount paid for the fruits
= 5
y + 8
y = $13
y (b)
Amount that Mrs Betty paid for the fruits
= 13
y = 13 x 6
= $78
Amount of change that Mrs Betty received
= 100 - 78
= $22
Answer(s): (a) $13
y ; (b) $22