PSLE Four teams of students sold hot chocolate for charity.
They collected $7 for a small cup of hot chocolate and $9 for a big cup of hot chocolate.
The table shows the number of cups sold by three of the teams.
|
Small cups |
Big cups |
Team N |
16 |
5 |
Team P |
14 |
9 |
Team Q |
7 |
14 |
- 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 hot chocolate as Team N but collected $8 more. How many big cups of hot chocolate did Team R sell?
(a)
Amount collected by Team N
= 16 x 7 + 5 x 9
= 112 + 45
= $157
Amount collected by Team P
= 14 x 7 + 9 x 9
= 98 + 81
= $179
Amount collected by Team Q
= 7 x 7 + 14 x 9
= 49 + 126
= $175
Team P collected the most money.
(b)
Amount collected by Team N = $157
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team N |
16 |
5 |
21 |
$157 |
Team R |
12 |
9 |
21 |
157 + 8 = $165 |
Since Team R and Team N sold the same number of cups but Team N collected $8 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 = $8
Difference in the amount collected for every one extra big cup sold by Team R
= 9 - 7
= $2
Number of extra big cups sold by Team R
= 8 ÷ 2
= 4
Number of big cups sold by Team R
= 5 + 4
= 9
Answer(s): (a) P; (b) $157; (c) 9