PSLE
Four teams of students sold coke for charity.
They collected $5 for a small cup of coke and $8 for a big cup of coke.

The table shows the number of cups sold by three of the teams.

	Small cups	Big cups
Team E	18	2
Team F	11	9
Team G	7	11

1. Which of the three teams collected the least money? Give your answer in letter. (Eg A)
2. What was the amount of money collected by Team G?
3. Team F sold as many cups of coke as Team H but collected $24 less. How many small cups of coke did Team H sell?

(a)
Amount collected by Team E = 90 + 16
= $106

Amount collected by Team F
= 11 x 5 + 9 x 8
= 55 + 72
= $127

Amount collected by Team G
= 7 x 5 + 11 x 8
= 35 + 88
= $123

Team E collected the least money.

(b)
Amount collected by Team G = $123

(c)

	Small cups	Big cups	Total cups	Total amount
Team F	11	9	20	$127
Team H	3	17	20	127 + 24 = $151

Since Team F and Team H sold the same number of cups but Team F collected $24 less, it means that Team H sold more big cups than Team F.

Difference in the total amount collected between Team F and Team H = $24

Difference in the amount collected for every one extra big cup sold by Team H
= 8 - 5
= $3

Number of extra big cups sold by Team H
= 24 ÷ 3
= 8

Number of small cups sold by Team H
= 11 - 8
= 3

Answer(s): (a) E; (b) $123; (c) 3