PSLE
A fruit stall sold pears at 90¢ and oranges at 60¢ each. Jade bought some pears and Esther bought some oranges from the stall. Esther spent $1.20 less than Jade, but had 4 fruits more than Jade.

1. How many oranges did Esther buy?
2. How much did Jade spend on the pears?

	Pears	Oranges
Number	1 u	1 u + 4
Value	0.9	0.6
Total value	0.9 u	0.6 u + 2.4

(a)
Number of pears that Jade bought = 1 u
Number of oranges that Esther bought = 1 u + 4

Amount that Jade paid = 0.9 x 1 u = 0.9 u
Amount that Esther paid = 0.6(1 u + 4) = 0.6 u + 2.4

If Esther spent another $1.20, both Esther and Jade would spend the same amount.

0.9 u = 0.6 u + 2.4 + 1.2
0.9 u - 0.6 u = 2.4 + 1.2
0.3 u = 3.6

1 u = 3.6 ÷ 0.3 = 12

Number of oranges that Esther bought
= 1 u + 4
= 12 + 4
= 16

(b)
Amount that Jade spent on the pears
= 0.9 u 
= 0.9 x 12 
= $10.80

Answer(s): (a) 12; (b) $10.80