Diana bought 4 kg of avocados at $
r per kg and 3 kg of kiwis 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 Diana receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the avocados
= 4 x
r = $4
r Amount paid for the kiwis
= 3 x 3
r = $9
r Total amount paid for the fruits
= 4
r + 9
r = $13
r (b)
Amount that Mrs Diana paid for the fruits
= 13
r = 13 x 5
= $65
Amount of change that Mrs Diana received
= 100 - 65
= $35
Answer(s): (a) $13
r ; (b) $35