PSLE The bar graphs show the sale of adult tickets and child tickets to a theme park over four days. The scale of the graph for child tickets is not shown.
- How many adult tickets were sold in total on Tuesday and Thursday?
- The ratio of the number of child tickets sold on Monday to the total number of tickets sold on that day was 4 : 5. How many child tickets were sold on Thursday?
(a)
Number of adult tickets sold on Monday = 10
Number of adult tickets sold on Tuesday = 90
Number of adult tickets sold on Wednesday = 20
Number of adult tickets sold on Thursday = 80
Total number of adult tickets sold on Tuesday and Thursday
= 90 + 80
= 170
(b)
Total number of tickets sold on Monday = 5 u
Number of child tickets sold on Monday = 4 u
Number of adult tickets sold on Monday
= 5 u - 4 u
= 1 u
1 u = 10
Number of child tickets sold on Monday
= 4 u
= 4 x 10
= 40
4 p = 40
1 p = 40 ÷ 4 = 10
Number of child tickets sold on Thursday
= 3 p
= 3 x 10
= 30
Answer(s): (a) 170; (b) 30