Kylie bought 2 kg of lemons at $
x per kg and 3 kg of durians at $2
x per kg.
- Find the amount that she paid for the fruits in terms of x.
- If x = 5, how much change did Mrs Kylie receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the lemons
= 2 x
x = $2
x Amount paid for the durians
= 3 x 2
x = $6
x Total amount paid for the fruits
= 2
x + 6
x = $8
x (b)
Amount that Mrs Kylie paid for the fruits
= 8
x = 8 x 5
= $40
Amount of change that Mrs Kylie received
= 100 - 40
= $60
Answer(s): (a) $8
x ; (b) $60