Irene bought 3 kg of pomegranates at $
x per kg and 2 kg of durians at $3
x per kg.
- Find the amount that she paid for the fruits in terms of x.
- If x = 5, how much change did Mrs Irene receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the pomegranates
= 3 x
x = $3
x Amount paid for the durians
= 2 x 3
x = $6
x Total amount paid for the fruits
= 3
x + 6
x = $9
x (b)
Amount that Mrs Irene paid for the fruits
= 9
x = 9 x 5
= $45
Amount of change that Mrs Irene received
= 100 - 45
= $55
Answer(s): (a) $9
x ; (b) $55