PSLE The bar graphs show the sale of adult tickets and child tickets to a zoo over four days. The scale of the graph for child tickets is not shown.
- How many adult tickets were sold in total on Monday and Wednesday?
- The ratio of the number of child tickets sold on Wednesday to the total number of tickets sold on that day was 4 : 5. How many child tickets were sold on Tuesday?
(a)
Number of adult tickets sold on Monday = 45
Number of adult tickets sold on Tuesday = 30
Number of adult tickets sold on Wednesday = 40
Number of adult tickets sold on Thursday = 35
Total number of adult tickets sold on Monday and Wednesday
= 45 + 40
= 85
(b)
Total number of tickets sold on Wednesday = 5 u
Number of child tickets sold on Wednesday = 4 u
Number of adult tickets sold on Wednesday
= 5 u - 4 u
= 1 u
1 u = 40
Number of child tickets sold on Wednesday
= 4 u
= 4 x 40
= 160
4 p = 160
1 p = 160 ÷ 4 = 40
Number of child tickets sold on Tuesday
= 1 p
= 1 x 40
= 40
Answer(s): (a) 85; (b) 40