PSLE Four teams of students sold lemonade for charity.
They collected $4 for a small cup of lemonade and $8 for a big cup of lemonade.
The table shows the number of cups sold by three of the teams.
|
Small cups |
Big cups |
Team R |
18 |
3 |
Team S |
14 |
8 |
Team T |
7 |
11 |
- 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 lemonade as Team R but collected $12 more. How many big cups of lemonade did Team U sell?
(a)
Amount collected by Team R
= 18 x 4 + 3 x 8
= 72 + 24
= $96
Amount collected by Team S
= 14 x 4 + 8 x 8
= 56 + 64
= $120
Amount collected by Team T
= 7 x 4 + 11 x 8
= 28 + 88
= $116
Team S collected the most money.
(b)
Amount collected by Team R = $96
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team R |
18 |
3 |
21 |
$96 |
Team U |
15 |
6 |
21 |
96 + 12 = $108 |
Since Team U and Team R sold the same number of cups but Team R collected $12 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 = $12
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
= 12 ÷ 4
= 3
Number of big cups sold by Team U
= 3 + 3
= 6
Answer(s): (a) S; (b) $96; (c) 6