PSLE Four teams of students sold hot chocolate for charity.
They collected $6 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 K |
19 |
4 |
Team L |
14 |
9 |
Team M |
7 |
13 |
- 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 K?
- Team N sold as many cups of hot chocolate as Team K but collected $21 more. How many big cups of hot chocolate did Team N sell?
(a)
Amount collected by Team K
= 19 x 6 + 4 x 9
= 114 + 36
= $150
Amount collected by Team L
= 14 x 6 + 9 x 9
= 84 + 81
= $165
Amount collected by Team M
= 7 x 6 + 13 x 9
= 42 + 117
= $159
Team L collected the most money.
(b)
Amount collected by Team K = $150
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team K |
19 |
4 |
23 |
$150 |
Team N |
12 |
11 |
23 |
150 + 21 = $171 |
Since Team N and Team K sold the same number of cups but Team K collected $21 more, it means that Team N sold more big cups than Team K.
Difference in the total amount collected between Team N and Team K = $21
Difference in the amount collected for every one extra big cup sold by Team N
= 9 - 6
= $3
Number of extra big cups sold by Team N
= 21 ÷ 3
= 7
Number of big cups sold by Team N
= 4 + 7
= 11
Answer(s): (a) L; (b) $150; (c) 11