PSLE Four teams of students sold soda for charity.
They collected $3 for a small cup of soda and $7 for a big cup of soda.
The table shows the number of cups sold by three of the teams.
|
Small cups |
Big cups |
Team S |
17 |
2 |
Team T |
13 |
9 |
Team U |
9 |
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 S?
- Team V sold as many cups of soda as Team S but collected $12 more. How many big cups of soda did Team V sell?
(a)
Amount collected by Team S
= 17 x 3 + 2 x 7
= 51 + 14
= $65
Amount collected by Team T
= 13 x 3 + 9 x 7
= 39 + 63
= $102
Amount collected by Team U
= 9 x 3 + 10 x 7
= 27 + 70
= $97
Team T collected the most money.
(b)
Amount collected by Team S = $65
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team S |
17 |
2 |
19 |
$65 |
Team V |
14 |
5 |
19 |
65 + 12 = $77 |
Since Team V and Team S sold the same number of cups but Team S collected $12 more, it means that Team V sold more big cups than Team S.
Difference in the total amount collected between Team V and Team S = $12
Difference in the amount collected for every one extra big cup sold by Team V
= 7 - 3
= $4
Number of extra big cups sold by Team V
= 12 ÷ 4
= 3
Number of big cups sold by Team V
= 2 + 3
= 5
Answer(s): (a) T; (b) $65; (c) 5