Diana bought 3 kg of durians at $
e per kg and 2 kg of mangosteens at $4
e per kg.
- Find the amount that she paid for the fruits in terms of e.
- If e = 7, how much change did Mrs Diana receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the durians
= 3 x
e = $3
e Amount paid for the mangosteens
= 2 x 4
e = $8
e Total amount paid for the fruits
= 3
e + 8
e = $11
e (b)
Amount that Mrs Diana paid for the fruits
= 11
e = 11 x 7
= $77
Amount of change that Mrs Diana received
= 100 - 77
= $23
Answer(s): (a) $11
e ; (b) $23