PSLE
A fruit stall sold mandarin oranges at 60¢ and dragon fruits at 40¢ each. Zara bought some mandarin oranges and Hazel bought some dragon fruits from the stall. Hazel spent $0.40 less than Zara, but had 2 fruits more than Zara.

1. How many dragon fruits did Hazel buy?
2. How much did Zara spend on the mandarin oranges?

	Mandarin Oranges	Dragon Fruits
Number	1 u	1 u + 2
Value	0.6	0.4
Total value	0.6 u	0.4 u + 0.8

(a)
Number of mandarin oranges that Zara bought = 1 u
Number of dragon fruits that Hazel bought = 1 u + 2

Amount that Zara paid = 0.6 x 1 u = 0.6 u
Amount that Hazel paid = 0.4(1 u + 2) = 0.4 u + 0.8

If Hazel spent another $0.40, both Hazel and Zara would spend the same amount.

0.6 u = 0.4 u + 0.8 + 0.4
0.6 u - 0.4 u = 0.8 + 0.4
0.2 u = 1.2

1 u = 1.2 ÷ 0.2 = 6

Number of dragon fruits that Hazel bought
= 1 u + 2
= 6 + 2
= 8

(b)
Amount that Zara spent on the mandarin oranges
= 0.6 u 
= 0.6 x 6 
= $3.60

Answer(s): (a) 6; (b) $3.60