PSLE
A fruit stall sold kiwis at 70¢ and plums at 40¢ each. Irene bought some kiwis and Hazel bought some plums from the stall. Hazel spent $0.90 less than Irene, but had 3 fruits more than Irene.

1. How many plums did Hazel buy?
2. How much did Irene spend on the kiwis?

	Kiwis	Plums
Number	1 u	1 u + 3
Value	0.7	0.4
Total value	0.7 u	0.4 u + 1.2

(a)
Number of kiwis that Irene bought = 1 u
Number of plums that Hazel bought = 1 u + 3

Amount that Irene paid = 0.7 x 1 u = 0.7 u
Amount that Hazel paid = 0.4(1 u + 3) = 0.4 u + 1.2

If Hazel spent another $0.90, both Hazel and Irene would spend the same amount.

0.7 u = 0.4 u + 1.2 + 0.9
0.7 u - 0.4 u = 1.2 + 0.9
0.3 u = 2.1

1 u = 2.1 ÷ 0.3 = 7

Number of plums that Hazel bought
= 1 u + 3
= 7 + 3
= 10

(b)
Amount that Irene spent on the kiwis
= 0.7 u 
= 0.7 x 7 
= $4.90

Answer(s): (a) 7; (b) $4.90