Olivia bought 3 kg of kiwis at $
b per kg and 2 kg of avocados at $2
b per kg.
- Find the amount that she paid for the fruits in terms of b.
- If b = 5, how much change did Mrs Olivia receive if she paid the fruit seller with a $50 note?
(a)
Amount paid for the kiwis
= 3 x
b = $3
b Amount paid for the avocados
= 2 x 2
b = $4
b Total amount paid for the fruits
= 3
b + 4
b = $7
b (b)
Amount that Mrs Olivia paid for the fruits
= 7
b = 7 x 5
= $35
Amount of change that Mrs Olivia received
= 50 - 35
= $15
Answer(s): (a) $7
b ; (b) $15