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 |
17 |
5 |
Team S |
11 |
9 |
Team T |
6 |
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 $16 more. How many big cups of lemonade did Team U sell?
(a)
Amount collected by Team R
= 17 x 4 + 5 x 8
= 68 + 40
= $108
Amount collected by Team S
= 11 x 4 + 9 x 8
= 44 + 72
= $116
Amount collected by Team T
= 6 x 4 + 11 x 8
= 24 + 88
= $112
Team S collected the most money.
(b)
Amount collected by Team R = $108
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team R |
17 |
5 |
22 |
$108 |
Team U |
13 |
9 |
22 |
108 + 16 = $124 |
Since Team U and Team R sold the same number of cups but Team R collected $16 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 = $16
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
= 16 ÷ 4
= 4
Number of big cups sold by Team U
= 5 + 4
= 9
Answer(s): (a) S; (b) $108; (c) 9