Anna bought 4 kg of apples at $
a per kg and 2 kg of durians at $2
a per kg.
- Find the amount that she paid for the fruits in terms of a.
- If a = 6, how much change did Mrs Anna receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the apples
= 4 x
a = $4
a Amount paid for the durians
= 2 x 2
a = $4
a Total amount paid for the fruits
= 4
a + 4
a = $8
a (b)
Amount that Mrs Anna paid for the fruits
= 8
a = 8 x 6
= $48
Amount of change that Mrs Anna received
= 100 - 48
= $52
Answer(s): (a) $8
a ; (b) $52