PSLE
Four teams of students sold lemonade for charity.
They collected $4 for a small cup of lemonade and $6 for a big cup of lemonade.

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

	Small cups	Big cups
Team J	15	2
Team K	12	9
Team L	8	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 J?
3. Team M sold as many cups of lemonade as Team J but collected $4 more. How many big cups of lemonade did Team M sell?

(a)
Amount collected by Team J = 60 + 12
= $72

Amount collected by Team K
= 12 x 4 + 9 x 6
= 48 + 54
= $102

Amount collected by Team L
= 8 x 4 + 11 x 6
= 32 + 66
= $98

Team K collected the most money.

(b)
Amount collected by Team J = $72

(c)

	Small cups	Big cups	Total cups	Total amount
Team J	15	2	17	$72
Team M	13	4	17	72 + 4 = $76

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

Difference in the total amount collected between Team M and Team J = $4

Difference in the amount collected for every one extra big cup sold by Team M
= 6 - 4
= $2

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

Number of big cups sold by Team M
= 2 + 2
= 4

Answer(s): (a) K; (b) $72; (c) 4