PSLE Four teams of students sold hot chocolate for charity.
They collected $4 for a small cup of hot chocolate and $7 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 |
20 |
2 |
Team P |
14 |
7 |
Team Q |
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 N?
- Team R sold as many cups of hot chocolate as Team N but collected $18 more. How many big cups of hot chocolate did Team R sell?
(a)
Amount collected by Team N
= 20 x 4 + 2 x 7
= 80 + 14
= $94
Amount collected by Team P
= 14 x 4 + 7 x 7
= 56 + 49
= $105
Amount collected by Team Q
= 7 x 4 + 10 x 7
= 28 + 70
= $98
Team P collected the most money.
(b)
Amount collected by Team N = $94
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team N |
20 |
2 |
22 |
$94 |
Team R |
14 |
8 |
22 |
94 + 18 = $112 |
Since Team R and Team N sold the same number of cups but Team N collected $18 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 = $18
Difference in the amount collected for every one extra big cup sold by Team R
= 7 - 4
= $3
Number of extra big cups sold by Team R
= 18 ÷ 3
= 6
Number of big cups sold by Team R
= 2 + 6
= 8
Answer(s): (a) P; (b) $94; (c) 8