Dana bought 3 kg of lemons at $
x per kg and 4 kg of papayas at $3
x per kg.
- Find the amount that she paid for the fruits in terms of x.
- If x = 6, how much change did Mrs Dana receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the lemons
= 3 x
x = $3
x Amount paid for the papayas
= 4 x 3
x = $12
x Total amount paid for the fruits
= 3
x + 12
x = $15
x (b)
Amount that Mrs Dana paid for the fruits
= 15
x = 15 x 6
= $90
Amount of change that Mrs Dana received
= 100 - 90
= $10
Answer(s): (a) $15
x ; (b) $10