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

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

	Small cups	Big cups
Team M	16	5
Team N	13	8
Team P	10	10

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 P?
3. Team N sold as many cups of iced milo as Team Q but collected $8 less. How many small cups of iced milo did Team Q sell?

(a)
Amount collected by Team M = 112 + 45
= $157

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

Amount collected by Team P
= 10 x 7 + 10 x 9
= 70 + 90
= $160

Team M collected the least money.

(b)
Amount collected by Team P = $160

(c)

	Small cups	Big cups	Total cups	Total amount
Team N	13	8	21	$163
Team Q	9	12	21	163 + 8 = $171

Since Team N and Team Q sold the same number of cups but Team N collected $8 less, it means that Team Q sold more big cups than Team N.

Difference in the total amount collected between Team N and Team Q = $8

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

Number of extra big cups sold by Team Q
= 8 ÷ 2
= 4

Number of small cups sold by Team Q
= 13 - 4
= 9

Answer(s): (a) M; (b) $160; (c) 9