Betty bought 2 kg of pomegranates at $
j per kg and 3 kg of pineapples at $2
j per kg.
- Find the amount that she paid for the fruits in terms of j.
- If j = 7, how much change did Mrs Betty receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the pomegranates
= 2 x
j = $2
j Amount paid for the pineapples
= 3 x 2
j = $6
j Total amount paid for the fruits
= 2
j + 6
j = $8
j (b)
Amount that Mrs Betty paid for the fruits
= 8
j = 8 x 7
= $56
Amount of change that Mrs Betty received
= 100 - 56
= $44
Answer(s): (a) $8
j ; (b) $44