PSLE
Four teams of students sold french fries for charity.
They collected $4 for a small cup of french fries and $8 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 P	16	4
Team Q	13	8
Team R	7	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 R?
3. Team Q sold as many cups of french fries as Team S but collected $16 less. How many small cups of french fries did Team S sell?

(a)
Amount collected by Team P = 64 + 32
= $96

Amount collected by Team Q
= 13 x 4 + 8 x 8
= 52 + 64
= $116

Amount collected by Team R
= 7 x 4 + 10 x 8
= 28 + 80
= $108

Team P collected the least money.

(b)
Amount collected by Team R = $108

(c)

	Small cups	Big cups	Total cups	Total amount
Team Q	13	8	21	$116
Team S	9	12	21	116 + 16 = $132

Since Team Q and Team S sold the same number of cups but Team Q collected $16 less, it means that Team S sold more big cups than Team Q.

Difference in the total amount collected between Team Q and Team S = $16

Difference in the amount collected for every one extra big cup sold by Team S
= 8 - 4
= $4

Number of extra big cups sold by Team S
= 16 ÷ 4
= 4

Number of small cups sold by Team S
= 13 - 4
= 9

Answer(s): (a) P; (b) $108; (c) 9