PSLE
Four teams of students sold hot chocolate for charity.
They collected $3 for a small cup of hot chocolate and $7 for a big cup of hot chocolate.

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

	Small cups	Big cups
Team G	17	4
Team H	11	9
Team J	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 G?
3. Team K sold as many cups of hot chocolate as Team G but collected $20 more. How many big cups of hot chocolate did Team K sell?

(a)
Amount collected by Team G = 51 + 28
= $79

Amount collected by Team H
= 11 x 3 + 9 x 7
= 33 + 63
= $96

Amount collected by Team J
= 6 x 3 + 11 x 7
= 18 + 77
= $95

Team H collected the most money.

(b)
Amount collected by Team G = $79

(c)

	Small cups	Big cups	Total cups	Total amount
Team G	17	4	21	$79
Team K	12	9	21	79 + 20 = $99

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

Difference in the total amount collected between Team K and Team G = $20

Difference in the amount collected for every one extra big cup sold by Team K
= 7 - 3
= $4

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

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

Answer(s): (a) H; (b) $79; (c) 9