PSLE
Type |
Age |
Price per ticket |
Adult
|
Below 55 years |
$42 |
55 years and above |
$25 |
Child |
Below 12 years |
$6 |
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 55 years. A total of $5886 was collected from the sale of tickets.
- What fraction of the tickets sold were for adults below 55 years? Give your answer in the simplest form.
- What was the total number of tickets sold?
Adults |
Children |
6x4 |
1x4 |
Below 55 years |
55 years and above |
|
7x3 |
1x3 |
|
21 u |
3 u |
4 u |
|
Adults Below 55 years |
Adults 55 years and above |
Children |
Number |
21 u |
3 u |
4 u |
Value |
$42 |
$25 |
$6 |
Total value |
882 u |
75 u |
24 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 55 years
=
2121 + 3 + 4 =
2128 =
34 (b)
Amount collected from the sale of tickets
= 882 u + 75 u + 24 u
= 981 u
981 u = 5886
1 u = 5886 ÷ 981 = 6
Total number of tickets sold
= 21 u + 3 u + 4 u
= 28 u
= 28 x 6
= 168
Answer(s): (a)
34; (b) 168