Hilda bought 2 kg of tomatoes at $
a per kg and 3 kg of papayas at $3
a per kg.
- Find the amount that she paid for the fruits in terms of a.
- If a = 7, how much change did Mrs Hilda receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the tomatoes
= 2 x
a = $2
a Amount paid for the papayas
= 3 x 3
a = $9
a Total amount paid for the fruits
= 2
a + 9
a = $11
a (b)
Amount that Mrs Hilda paid for the fruits
= 11
a = 11 x 7
= $77
Amount of change that Mrs Hilda received
= 100 - 77
= $23
Answer(s): (a) $11
a ; (b) $23