PSLE
Four teams of students sold french fries for charity.
They collected $5 for a small cup of french fries and $7 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 K	17	5
Team L	14	9
Team M	9	11

1. Which of the three teams collected the most money? Give your answer in letter. (Eg A)
2. What was the amount of money collected by Team K?
3. Team N sold as many cups of french fries as Team K but collected $4 more. How many big cups of french fries did Team N sell?

(a)
Amount collected by Team K = 85 + 35
= $120

Amount collected by Team L
= 14 x 5 + 9 x 7
= 70 + 63
= $133

Amount collected by Team M
= 9 x 5 + 11 x 7
= 45 + 77
= $122

Team L collected the most money.

(b)
Amount collected by Team K = $120

(c)

	Small cups	Big cups	Total cups	Total amount
Team K	17	5	22	$120
Team N	15	7	22	120 + 4 = $124

Since Team N and Team K sold the same number of cups but Team K collected $4 more, it means that Team N sold more big cups than Team K.

Difference in the total amount collected between Team N and Team K = $4

Difference in the amount collected for every one extra big cup sold by Team N
= 7 - 5
= $2

Number of extra big cups sold by Team N
= 4 ÷ 2
= 2

Number of big cups sold by Team N
= 5 + 2
= 7

Answer(s): (a) L; (b) $120; (c) 7