Xylia bought 5 kg of durians at $
z per kg and 3 kg of pomegranates at $2
z per kg.
- Find the amount that she paid for the fruits in terms of z.
- If z = 7, how much change did Mrs Xylia receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the durians
= 5 x
z = $5
z Amount paid for the pomegranates
= 3 x 2
z = $6
z Total amount paid for the fruits
= 5
z + 6
z = $11
z (b)
Amount that Mrs Xylia paid for the fruits
= 11
z = 11 x 7
= $77
Amount of change that Mrs Xylia received
= 100 - 77
= $23
Answer(s): (a) $11
z ; (b) $23