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