PSLE
Type |
Age |
Price per ticket |
Adult
|
Below 65 years |
$40 |
65 years and above |
$21 |
Child |
Below 16 years |
$9 |
The table shows the prices of tickets for a musical.
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 65 years. A total of $6372 was collected from the sale of tickets.
- What fraction of the tickets sold were for adults aged 65 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 65 years |
65 years and above |
|
3x3 |
2x3 |
|
9 u |
6 u |
5 u |
|
Adults Below 65 years |
Adults 65 years and above |
Children |
Number |
9 u |
6 u |
5 u |
Value |
$40 |
$21 |
$9 |
Total value |
360 u |
126 u |
45 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 65 years and more
=
69 + 6 + 5 =
620 =
310 (b)
Amount collected from the sale of tickets
= 360 u + 126 u + 45 u
= 531 u
531 u = 6372
1 u = 6372 ÷ 531 = 12
Total number of tickets sold to adults
= 9 u + 6 u
= 15 u
= 15 x 12
= 180
Answer(s): (a)
310; (b) 180