Kathy bought 3 kg of tomatoes at $
j per kg and 2 kg of lemons at $2
j per kg.
- Find the amount that she paid for the fruits in terms of j.
- If j = 6, how much change did Mrs Kathy receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the tomatoes
= 3 x
j = $3
j Amount paid for the lemons
= 2 x 2
j = $4
j Total amount paid for the fruits
= 3
j + 4
j = $7
j (b)
Amount that Mrs Kathy paid for the fruits
= 7
j = 7 x 6
= $42
Amount of change that Mrs Kathy received
= 100 - 42
= $58
Answer(s): (a) $7
j ; (b) $58