PSLE
Four teams of students sold lemonade for charity.
They collected $2 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 B	16	4
Team C	11	9
Team D	7	10

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 B?
3. Team E sold as many cups of lemonade as Team B but collected $20 more. How many big cups of lemonade did Team E sell?

(a)
Amount collected by Team B = 32 + 24
= $56

Amount collected by Team C
= 11 x 2 + 9 x 6
= 22 + 54
= $76

Amount collected by Team D
= 7 x 2 + 10 x 6
= 14 + 60
= $74

Team C collected the most money.

(b)
Amount collected by Team B = $56

(c)

	Small cups	Big cups	Total cups	Total amount
Team B	16	4	20	$56
Team E	11	9	20	56 + 20 = $76

Since Team E and Team B sold the same number of cups but Team B collected $20 more, it means that Team E sold more big cups than Team B.

Difference in the total amount collected between Team E and Team B = $20

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

Number of extra big cups sold by Team E
= 20 ÷ 4
= 5

Number of big cups sold by Team E
= 4 + 5
= 9

Answer(s): (a) C; (b) $56; (c) 9