PSLE Four teams of students sold soda for charity.
They collected $5 for a small cup of soda and $8 for a big cup of soda.
The table shows the number of cups sold by three of the teams.
|
Small cups |
Big cups |
Team K |
16 |
4 |
Team L |
14 |
9 |
Team M |
7 |
12 |
- Which of the three teams collected the least money? Give your answer in letter. (Eg A)
- What was the amount of money collected by Team M?
- Team L sold as many cups of soda as Team N but collected $9 less. How many small cups of soda did Team N sell?
(a)
Amount collected by Team K
= 16 x 5 + 4 x 8
= 80 + 32
= $112
Amount collected by Team L
= 14 x 5 + 9 x 8
= 70 + 72
= $142
Amount collected by Team M
= 7 x 5 + 12 x 8
= 35 + 96
= $131
Team K collected the least money.
(b)
Amount collected by Team M = $131
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team L |
14 |
9 |
23 |
$142 |
Team N |
11 |
12 |
23 |
142 + 9 = $151 |
Since Team L and Team N sold the same number of cups but Team L collected $9 less, it means that Team N sold more big cups than Team L.
Difference in the total amount collected between Team L and Team N = $9
Difference in the amount collected for every one extra big cup sold by Team N
= 8 - 5
= $3
Number of extra big cups sold by Team N
= 9 ÷ 3
= 3
Number of small cups sold by Team N
= 14 - 3
= 11
Answer(s): (a) K; (b) $131; (c) 11