PSLE
Four teams of students sold french fries for charity.
They collected $6 for a small cup of french fries and $10 for a big cup of french fries.

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

	Small cups	Big cups
Team Q	17	3
Team R	14	7
Team S	8	10

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 S?
3. Team R sold as many cups of french fries as Team T but collected $28 less. How many small cups of french fries did Team T sell?

(a)
Amount collected by Team Q = 102 + 30
= $132

Amount collected by Team R
= 14 x 6 + 7 x 10
= 84 + 70
= $154

Amount collected by Team S
= 8 x 6 + 10 x 10
= 48 + 100
= $148

Team Q collected the least money.

(b)
Amount collected by Team S = $148

(c)

	Small cups	Big cups	Total cups	Total amount
Team R	14	7	21	$154
Team T	7	14	21	154 + 28 = $182

Since Team R and Team T sold the same number of cups but Team R collected $28 less, it means that Team T sold more big cups than Team R.

Difference in the total amount collected between Team R and Team T = $28

Difference in the amount collected for every one extra big cup sold by Team T
= 10 - 6
= $4

Number of extra big cups sold by Team T
= 28 ÷ 4
= 7

Number of small cups sold by Team T
= 14 - 7
= 7

Answer(s): (a) Q; (b) $148; (c) 7