Julie bought 5 kg of lemons at $
n per kg and 3 kg of durians at $2
n per kg.
- Find the amount that she paid for the fruits in terms of n.
- If n = 5, how much change did Mrs Julie receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the lemons
= 5 x
n = $5
n Amount paid for the durians
= 3 x 2
n = $6
n Total amount paid for the fruits
= 5
n + 6
n = $11
n (b)
Amount that Mrs Julie paid for the fruits
= 11
n = 11 x 5
= $55
Amount of change that Mrs Julie received
= 100 - 55
= $45
Answer(s): (a) $11
n ; (b) $45