PSLE
A fruit stall sold apples at 70¢ and grapefruits at 50¢ each. Tammy bought some apples and Jade bought some grapefruits from the stall. Tammy spent $0.40 more than Jade, but had 2 fruits fewer than Jade.

1. How many apples did Tammy buy?
2. How much did Jade spend on the grapefruits?

	Apples	Grapefruits
Number	1 u	1 u + 2
Value	0.7	0.5
Total value	0.7 u	0.5 u + 1

(a)
Number of apples that Tammy bought = 1 u
Number of grapefruits that Jade bought = 1 u + 2

Amount that Tammy paid = 0.7 x 1 u = 0.7 u
Amount that Jade paid = 0.5(1 u + 2) = 0.5 u + 1

If Jade spent another $0.40, both Jade and Tammy would spend the same amount.

0.7 u = 0.5 u + 1 + 0.4
0.7 u - 0.5 u = 1 + 0.4
0.2 u = 1.4

1 u = 1.4 ÷ 0.2 = 7

Number of apples that Tammy bought
= 1 u
= 7

(b)
Amount that Jade spent on the grapefruits
= 0.5 u + 1
= 0.5 x 7 + 1
= 3.5 + 1
= $4.50

Answer(s): (a) 7; (b) $4.50