PSLE
Type |
Age |
Price per ticket |
Adult
|
Below 65 years |
$33 |
65 years and above |
$15 |
Child |
Below 12 years |
$5 |
The table shows the prices of tickets for a concert.
The number of adult tickets sold was 6 times the number of child tickets sold.
78 of the adult tickets sold were for adults aged below 65 years. A total of $7580 was collected from the sale of tickets.
- What fraction of the tickets sold were for adults below 65 years? Give your answer in the simplest form.
- What was the total number of tickets sold?
Adults |
Children |
6x4 |
1x4 |
Below 65 years |
65 years and above |
|
7x3 |
1x3 |
|
21 u |
3 u |
4 u |
|
Adults Below 65 years |
Adults 65 years and above |
Children |
Number |
21 u |
3 u |
4 u |
Value |
$33 |
$15 |
$5 |
Total value |
693 u |
45 u |
20 u |
(a)
The number of adults is the repeated identity. LCM of 6 and 8 is 24.
Fraction of tickets sold were for adults below 65 years
=
2121 + 3 + 4 =
2128 =
34 (b)
Amount collected from the sale of tickets
= 693 u + 45 u + 20 u
= 758 u
758 u = 7580
1 u = 7580 ÷ 758 = 10
Total number of tickets sold
= 21 u + 3 u + 4 u
= 28 u
= 28 x 10
= 280
Answer(s): (a)
34; (b) 280