Hazel bought 3 kg of lemons at $
j per kg and 5 kg of mangosteens at $3
j per kg.
- Find the amount that she paid for the fruits in terms of j.
- If j = 5, how much change did Mrs Hazel receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the lemons
= 3 x
j = $3
j Amount paid for the mangosteens
= 5 x 3
j = $15
j Total amount paid for the fruits
= 3
j + 15
j = $18
j (b)
Amount that Mrs Hazel paid for the fruits
= 18
j = 18 x 5
= $90
Amount of change that Mrs Hazel received
= 100 - 90
= $10
Answer(s): (a) $18
j ; (b) $10