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

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

	Small cups	Big cups
Team E	16	2
Team F	13	9
Team G	7	13

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 lemonade as Team E but collected $14 more. How many big cups of lemonade did Team H sell?

(a)
Amount collected by Team E = 112 + 18
= $130

Amount collected by Team F
= 13 x 7 + 9 x 9
= 91 + 81
= $172

Amount collected by Team G
= 7 x 7 + 13 x 9
= 49 + 117
= $166

Team F collected the most money.

(b)
Amount collected by Team E = $130

(c)

	Small cups	Big cups	Total cups	Total amount
Team E	16	2	18	$130
Team H	9	9	18	130 + 14 = $144

Since Team H and Team E sold the same number of cups but Team E collected $14 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 = $14

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
= 14 ÷ 2
= 7

Number of big cups sold by Team H
= 2 + 7
= 9

Answer(s): (a) F; (b) $130; (c) 9