PSLE The bar graphs show the sale of child tickets and adult tickets to a theme park over four days. The scale of the graph for adult tickets is not shown.
- How many child tickets were sold in total on Tuesday and Thursday?
- The ratio of the number of adult tickets sold on Monday to the total number of tickets sold on that day was 4 : 5. How many adult tickets were sold on Thursday?
(a)
Number of child tickets sold on Monday = 60
Number of child tickets sold on Tuesday = 10
Number of child tickets sold on Wednesday = 20
Number of child tickets sold on Thursday = 40
Total number of child tickets sold on Tuesday and Thursday
= 10 + 40
= 50
(b)
Total number of tickets sold on Monday = 5 u
Number of adult tickets sold on Monday = 4 u
Number of child tickets sold on Monday
= 5 u - 4 u
= 1 u
1 u = 60
Number of adult tickets sold on Monday
= 4 u
= 4 x 60
= 240
4 p = 240
1 p = 240 ÷ 4 = 60
Number of adult tickets sold on Thursday
= 3 p
= 3 x 60
= 180
Answer(s): (a) 50; (b) 180