Natalie bought 3 kg of lemons at $
a per kg and 4 kg of mangosteens at $2
a per kg.
- Find the amount that she paid for the fruits in terms of a.
- If a = 5, how much change did Mrs Natalie receive if she paid the fruit seller with a $100 note?
(a)
Amount paid for the lemons
= 3 x
a = $3
a Amount paid for the mangosteens
= 4 x 2
a = $8
a Total amount paid for the fruits
= 3
a + 8
a = $11
a (b)
Amount that Mrs Natalie paid for the fruits
= 11
a = 11 x 5
= $55
Amount of change that Mrs Natalie received
= 100 - 55
= $45
Answer(s): (a) $11
a ; (b) $45