PSLE
Type |
Age |
Price per ticket |
Adult
|
Below 60 years |
$39 |
60 years and above |
$20 |
Child |
Below 16 years |
$8 |
The table shows the prices of tickets for a basketball tournament.
The number of adult tickets sold was 3 times the number of child tickets sold.
35 of the adult tickets sold were for adults aged below 60 years. A total of $8687 was collected from the sale of tickets.
- What fraction of the tickets sold were for adults aged 60 years and above? Give your answer in the simplest form.
- What was the total number of tickets sold to adults?
Adults |
Children |
3x5 |
1x5 |
Below 60 years |
60 years and above |
|
3x3 |
2x3 |
|
9 u |
6 u |
5 u |
|
Adults Below 60 years |
Adults 60 years and above |
Children |
Number |
9 u |
6 u |
5 u |
Value |
$39 |
$20 |
$8 |
Total value |
351 u |
120 u |
40 u |
(a)
The number of adults is the repeated identity. LCM of 3 and 5 is 15.
Fraction of tickets sold were for adults aged 60 years and more
=
69 + 6 + 5 =
620 =
310 (b)
Amount collected from the sale of tickets
= 351 u + 120 u + 40 u
= 511 u
511 u = 8687
1 u = 8687 ÷ 511 = 17
Total number of tickets sold to adults
= 9 u + 6 u
= 15 u
= 15 x 17
= 255
Answer(s): (a)
310; (b) 255