PSLE
Four teams of students sold hot chocolate for charity.
They collected $4 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 J	17	5
Team K	14	9
Team L	6	12

1. Which of the three teams collected the least money? Give your answer in letter. (Eg A)
2. What was the amount of money collected by Team L?
3. Team K sold as many cups of hot chocolate as Team M but collected $15 less. How many small cups of hot chocolate did Team M sell?

(a)
Amount collected by Team J = 68 + 35
= $103

Amount collected by Team K
= 14 x 4 + 9 x 7
= 56 + 63
= $119

Amount collected by Team L
= 6 x 4 + 12 x 7
= 24 + 84
= $108

Team J collected the least money.

(b)
Amount collected by Team L = $108

(c)

	Small cups	Big cups	Total cups	Total amount
Team K	14	9	23	$119
Team M	9	14	23	119 + 15 = $134

Since Team K and Team M sold the same number of cups but Team K collected $15 less, it means that Team M sold more big cups than Team K.

Difference in the total amount collected between Team K and Team M = $15

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

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

Number of small cups sold by Team M
= 14 - 5
= 9

Answer(s): (a) J; (b) $108; (c) 9