PSLE
A fruit stall sold peaches at 60¢ and plums at 30¢ each. Fiona bought some peaches and Kimberly bought some plums from the stall. Kimberly spent $2.10 less than Fiona, but had 4 fruits more than Fiona.

1. How many plums did Kimberly buy?
2. How much did Fiona spend on the peaches?

	Peaches	Plums
Number	1 u	1 u + 4
Value	0.6	0.3
Total value	0.6 u	0.3 u + 1.2

(a)
Number of peaches that Fiona bought = 1 u
Number of plums that Kimberly bought = 1 u + 4

Amount that Fiona paid = 0.6 x 1 u = 0.6 u
Amount that Kimberly paid = 0.3(1 u + 4) = 0.3 u + 1.2

If Kimberly spent another $2.10, both Kimberly and Fiona would spend the same amount.

0.6 u = 0.3 u + 1.2 + 2.1
0.6 u - 0.3 u = 1.2 + 2.1
0.3 u = 3.3

1 u = 3.3 ÷ 0.3 = 11

Number of plums that Kimberly bought
= 1 u + 4
= 11 + 4
= 15

(b)
Amount that Fiona spent on the peaches
= 0.6 u 
= 0.6 x 11 
= $6.60

Answer(s): (a) 11; (b) $6.60