PSLE Four teams of students sold lemonade for charity.
They collected $5 for a small cup of lemonade and $8 for a big cup of lemonade.
The table shows the number of cups sold by three of the teams.
|
Small cups |
Big cups |
Team H |
16 |
5 |
Team J |
13 |
8 |
Team K |
9 |
10 |
- 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 K?
- Team J sold as many cups of lemonade as Team L but collected $15 less. How many small cups of lemonade did Team L sell?
(a)
Amount collected by Team H
= 16 x 5 + 5 x 8
= 80 + 40
= $120
Amount collected by Team J
= 13 x 5 + 8 x 8
= 65 + 64
= $129
Amount collected by Team K
= 9 x 5 + 10 x 8
= 45 + 80
= $125
Team H collected the least money.
(b)
Amount collected by Team K = $125
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team J |
13 |
8 |
21 |
$129 |
Team L |
8 |
13 |
21 |
129 + 15 = $144 |
Since Team J and Team L sold the same number of cups but Team J collected $15 less, it means that Team L sold more big cups than Team J.
Difference in the total amount collected between Team J and Team L = $15
Difference in the amount collected for every one extra big cup sold by Team L
= 8 - 5
= $3
Number of extra big cups sold by Team L
= 15 ÷ 3
= 5
Number of small cups sold by Team L
= 13 - 5
= 8
Answer(s): (a) H; (b) $125; (c) 8