PSLE Four teams of students sold ice cream for charity.
They collected $5 for a small cup of ice cream and $9 for a big cup of ice cream.
The table shows the number of cups sold by three of the teams.
|
Small cups |
Big cups |
Team N |
18 |
4 |
Team P |
14 |
9 |
Team Q |
8 |
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 N?
- Team R sold as many cups of ice cream as Team N but collected $28 more. How many big cups of ice cream did Team R sell?
(a)
Amount collected by Team N
= 18 x 5 + 4 x 9
= 90 + 36
= $126
Amount collected by Team P
= 14 x 5 + 9 x 9
= 70 + 81
= $151
Amount collected by Team Q
= 8 x 5 + 10 x 9
= 40 + 90
= $130
Team P collected the most money.
(b)
Amount collected by Team N = $126
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team N |
18 |
4 |
22 |
$126 |
Team R |
11 |
11 |
22 |
126 + 28 = $154 |
Since Team R and Team N sold the same number of cups but Team N collected $28 more, it means that Team R sold more big cups than Team N.
Difference in the total amount collected between Team R and Team N = $28
Difference in the amount collected for every one extra big cup sold by Team R
= 9 - 5
= $4
Number of extra big cups sold by Team R
= 28 ÷ 4
= 7
Number of big cups sold by Team R
= 4 + 7
= 11
Answer(s): (a) P; (b) $126; (c) 11