PSLE Four teams of students sold lemonade for charity.
They collected $3 for a small cup of lemonade and $6 for a big cup of lemonade.
The table shows the number of cups sold by three of the teams.
|
Small cups |
Big cups |
Team P |
20 |
2 |
Team Q |
14 |
8 |
Team R |
6 |
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 R?
- Team Q sold as many cups of lemonade as Team S but collected $24 less. How many small cups of lemonade did Team S sell?
(a)
Amount collected by Team P
= 20 x 3 + 2 x 6
= 60 + 12
= $72
Amount collected by Team Q
= 14 x 3 + 8 x 6
= 42 + 48
= $90
Amount collected by Team R
= 6 x 3 + 10 x 6
= 18 + 60
= $78
Team P collected the least money.
(b)
Amount collected by Team R = $78
(c)
|
Small cups |
Big cups |
Total cups |
Total amount |
Team Q |
14 |
8 |
22 |
$90 |
Team S |
6 |
16 |
22 |
90 + 24 = $114 |
Since Team Q and Team S sold the same number of cups but Team Q collected $24 less, it means that Team S sold more big cups than Team Q.
Difference in the total amount collected between Team Q and Team S = $24
Difference in the amount collected for every one extra big cup sold by Team S
= 6 - 3
= $3
Number of extra big cups sold by Team S
= 24 ÷ 3
= 8
Number of small cups sold by Team S
= 14 - 8
= 6
Answer(s): (a) P; (b) $78; (c) 6