Kathy bought 4 kg of pineapples at $
k per kg and 3 kg of tomatoes at $3
k per kg.
- Find the amount that she paid for the fruits in terms of k.
- If k = 5, how much change did Mrs Kathy receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the pineapples
= 4 x
k = $4
k Amount paid for the tomatoes
= 3 x 3
k = $9
k Total amount paid for the fruits
= 4
k + 9
k = $13
k (b)
Amount that Mrs Kathy paid for the fruits
= 13
k = 13 x 5
= $65
Amount of change that Mrs Kathy received
= 100 - 65
= $35
Answer(s): (a) $13
k ; (b) $35