PSLE Four teams of students sold lemonade for charity.
They collected $6 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 C |
19 |
3 |
Team D |
14 |
9 |
Team E |
8 |
12 |
- 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 C?
- Team F sold as many cups of lemonade as Team C but collected $8 more. How many big cups of lemonade did Team F sell?
(a)
Amount collected by Team C
= 19 x 6 + 3 x 8
= 114 + 24
= $138
Amount collected by Team D
= 14 x 6 + 9 x 8
= 84 + 72
= $156
Amount collected by Team E
= 8 x 6 + 12 x 8
= 48 + 96
= $144
Team D collected the most money.
(b)
Amount collected by Team C = $138
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team C |
19 |
3 |
22 |
$138 |
Team F |
15 |
7 |
22 |
138 + 8 = $146 |
Since Team F and Team C sold the same number of cups but Team C collected $8 more, it means that Team F sold more big cups than Team C.
Difference in the total amount collected between Team F and Team C = $8
Difference in the amount collected for every one extra big cup sold by Team F
= 8 - 6
= $2
Number of extra big cups sold by Team F
= 8 ÷ 2
= 4
Number of big cups sold by Team F
= 3 + 4
= 7
Answer(s): (a) D; (b) $138; (c) 7