PSLE Four teams of students sold lemonade for charity.
They collected $3 for a small cup of lemonade and $7 for a big cup of lemonade.
The table shows the number of cups sold by three of the teams.
|
Small cups |
Big cups |
Team P |
20 |
4 |
Team Q |
14 |
9 |
Team R |
7 |
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 P?
- Team S sold as many cups of lemonade as Team P but collected $20 more. How many big cups of lemonade did Team S sell?
(a)
Amount collected by Team P
= 20 x 3 + 4 x 7
= 60 + 28
= $88
Amount collected by Team Q
= 14 x 3 + 9 x 7
= 42 + 63
= $105
Amount collected by Team R
= 7 x 3 + 10 x 7
= 21 + 70
= $91
Team Q collected the most money.
(b)
Amount collected by Team P = $88
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team P |
20 |
4 |
24 |
$88 |
Team S |
15 |
9 |
24 |
88 + 20 = $108 |
Since Team S and Team P sold the same number of cups but Team P collected $20 more, it means that Team S sold more big cups than Team P.
Difference in the total amount collected between Team S and Team P = $20
Difference in the amount collected for every one extra big cup sold by Team S
= 7 - 3
= $4
Number of extra big cups sold by Team S
= 20 ÷ 4
= 5
Number of big cups sold by Team S
= 4 + 5
= 9
Answer(s): (a) Q; (b) $88; (c) 9