Diana bought 5 kg of mangosteens at $
i per kg and 4 kg of durians at $2
i per kg.
- Find the amount that she paid for the fruits in terms of i.
- If i = 5, how much change did Mrs Diana receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the mangosteens
= 5 x
i = $5
i Amount paid for the durians
= 4 x 2
i = $8
i Total amount paid for the fruits
= 5
i + 8
i = $13
i (b)
Amount that Mrs Diana paid for the fruits
= 13
i = 13 x 5
= $65
Amount of change that Mrs Diana received
= 100 - 65
= $35
Answer(s): (a) $13
i ; (b) $35