PSLE
Four teams of students sold ice cream for charity.
They collected $5 for a small cup of ice cream and $8 for a big cup of ice cream.

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

	Small cups	Big cups
Team B	16	2
Team C	12	8
Team D	6	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 B?
3. Team E sold as many cups of ice cream as Team B but collected $15 more. How many big cups of ice cream did Team E sell?

(a)
Amount collected by Team B = 80 + 16
= $96

Amount collected by Team C
= 12 x 5 + 8 x 8
= 60 + 64
= $124

Amount collected by Team D
= 6 x 5 + 11 x 8
= 30 + 88
= $118

Team C collected the most money.

(b)
Amount collected by Team B = $96

(c)

	Small cups	Big cups	Total cups	Total amount
Team B	16	2	18	$96
Team E	11	7	18	96 + 15 = $111

Since Team E and Team B sold the same number of cups but Team B collected $15 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 = $15

Difference in the amount collected for every one extra big cup sold by Team E
= 8 - 5
= $3

Number of extra big cups sold by Team E
= 15 ÷ 3
= 5

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

Answer(s): (a) C; (b) $96; (c) 7