Rachel bought 4 kg of mangosteens at $
j per kg and 2 kg of honeydews 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 Rachel receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the mangosteens
= 4 x
j = $4
j Amount paid for the honeydews
= 2 x 2
j = $4
j Total amount paid for the fruits
= 4
j + 4
j = $8
j (b)
Amount that Mrs Rachel paid for the fruits
= 8
j = 8 x 7
= $56
Amount of change that Mrs Rachel received
= 100 - 56
= $44
Answer(s): (a) $8
j ; (b) $44