PSLE The bar graphs show the sale of child tickets and adult tickets to a bird 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 5 : 6. How many adult tickets were sold on Thursday?
(a)
Number of child tickets sold on Monday = 50
Number of child tickets sold on Tuesday = 60
Number of child tickets sold on Wednesday = 40
Number of child tickets sold on Thursday = 20
Total number of child tickets sold on Tuesday and Thursday
= 60 + 20
= 80
(b)
Total number of tickets sold on Monday = 6 u
Number of adult tickets sold on Monday = 5 u
Number of child tickets sold on Monday
= 6 u - 5 u
= 1 u
1 u = 50
Number of adult tickets sold on Monday
= 5 u
= 5 x 50
= 250
1 p = 250
1 p = 250 ÷ 1 = 250
Number of adult tickets sold on Thursday
= 3 p
= 3 x 250
= 750
Answer(s): (a) 80; (b) 750