PSLE The bar graphs show the sale of adult tickets and child tickets to a bird 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 = 180
Number of adult tickets sold on Tuesday = 100
Number of adult tickets sold on Wednesday = 80
Number of adult tickets sold on Thursday = 160
Total number of adult tickets sold on Tuesday and Thursday
= 100 + 160
= 260
(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 = 180
Number of child tickets sold on Monday
= 4 u
= 4 x 180
= 720
1 p = 720
1 p = 720 ÷ 1 = 720
Number of child tickets sold on Thursday
= 4 p
= 4 x 720
= 2880
Answer(s): (a) 260; (b) 2880