PSLE Four teams of students sold hot chocolate for charity.
They collected $4 for a small cup of hot chocolate and $8 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 R |
15 |
3 |
Team S |
13 |
9 |
Team T |
6 |
10 |
- Which of the three teams collected the most money? Give your answer in letter. (Eg A)
- What was the amount of money collected by Team R?
- Team U sold as many cups of hot chocolate as Team R but collected $8 more. How many big cups of hot chocolate did Team U sell?
(a)
Amount collected by Team R
= 15 x 4 + 3 x 8
= 60 + 24
= $84
Amount collected by Team S
= 13 x 4 + 9 x 8
= 52 + 72
= $124
Amount collected by Team T
= 6 x 4 + 10 x 8
= 24 + 80
= $104
Team S collected the most money.
(b)
Amount collected by Team R = $84
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team R |
15 |
3 |
18 |
$84 |
Team U |
13 |
5 |
18 |
84 + 8 = $92 |
Since Team U and Team R sold the same number of cups but Team R collected $8 more, it means that Team U sold more big cups than Team R.
Difference in the total amount collected between Team U and Team R = $8
Difference in the amount collected for every one extra big cup sold by Team U
= 8 - 4
= $4
Number of extra big cups sold by Team U
= 8 ÷ 4
= 2
Number of big cups sold by Team U
= 3 + 2
= 5
Answer(s): (a) S; (b) $84; (c) 5