PSLE
A fruit stall sold dates at 70¢ and pomegranates at 40¢ each. Betty bought some dates and Tiffany bought some pomegranates from the stall. Tiffany spent $0.80 less than Betty, but had 4 fruits more than Betty.

1. How many pomegranates did Tiffany buy?
2. How much did Betty spend on the dates?

	Dates	Pomegranates
Number	1 u	1 u + 4
Value	0.7	0.4
Total value	0.7 u	0.4 u + 1.6

(a)
Number of dates that Betty bought = 1 u
Number of pomegranates that Tiffany bought = 1 u + 4

Amount that Betty paid = 0.7 x 1 u = 0.7 u
Amount that Tiffany paid = 0.4(1 u + 4) = 0.4 u + 1.6

If Tiffany spent another $0.80, both Tiffany and Betty would spend the same amount.

0.7 u = 0.4 u + 1.6 + 0.8
0.7 u - 0.4 u = 1.6 + 0.8
0.3 u = 2.4

1 u = 2.4 ÷ 0.3 = 8

Number of pomegranates that Tiffany bought
= 1 u + 4
= 8 + 4
= 12

(b)
Amount that Betty spent on the dates
= 0.7 u 
= 0.7 x 8 
= $5.60

Answer(s): (a) 8; (b) $5.60