Emma bought 3 kg of tomatoes at $
i per kg and 2 kg of papayas at $2
i per kg.
- Find the amount that she paid for the fruits in terms of i.
- If i = 7, how much change did Mrs Emma receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the tomatoes
= 3 x
i = $3
i Amount paid for the papayas
= 2 x 2
i = $4
i Total amount paid for the fruits
= 3
i + 4
i = $7
i (b)
Amount that Mrs Emma paid for the fruits
= 7
i = 7 x 7
= $49
Amount of change that Mrs Emma received
= 100 - 49
= $51
Answer(s): (a) $7
i ; (b) $51