PSLE
Four teams of students sold soda for charity.
They collected $7 for a small cup of soda and $9 for a big cup of soda.

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

	Small cups	Big cups
Team E	15	3
Team F	13	8
Team G	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 E?
3. Team H sold as many cups of soda as Team E but collected $6 more. How many big cups of soda did Team H sell?

(a)
Amount collected by Team E = 105 + 27
= $132

Amount collected by Team F
= 13 x 7 + 8 x 9
= 91 + 72
= $163

Amount collected by Team G
= 6 x 7 + 11 x 9
= 42 + 99
= $141

Team F collected the most money.

(b)
Amount collected by Team E = $132

(c)

	Small cups	Big cups	Total cups	Total amount
Team E	15	3	18	$132
Team H	12	6	18	132 + 6 = $138

Since Team H and Team E sold the same number of cups but Team E collected $6 more, it means that Team H sold more big cups than Team E.

Difference in the total amount collected between Team H and Team E = $6

Difference in the amount collected for every one extra big cup sold by Team H
= 9 - 7
= $2

Number of extra big cups sold by Team H
= 6 ÷ 2
= 3

Number of big cups sold by Team H
= 3 + 3
= 6

Answer(s): (a) F; (b) $132; (c) 6