PSLE The bar graphs show the sale of child tickets and adult tickets to a tourist attraction over four days. The scale of the graph for adult tickets is not shown.
- How many child tickets were sold in total on Monday and Wednesday?
- The ratio of the number of adult tickets sold on Wednesday to the total number of tickets sold on that day was 4 : 5. How many adult tickets were sold on Tuesday?
(a)
Number of child tickets sold on Monday = 80
Number of child tickets sold on Tuesday = 120
Number of child tickets sold on Wednesday = 60
Number of child tickets sold on Thursday = 200
Total number of child tickets sold on Monday and Wednesday
= 80 + 60
= 140
(b)
Total number of tickets sold on Wednesday = 5 u
Number of adult tickets sold on Wednesday = 4 u
Number of child tickets sold on Wednesday
= 5 u - 4 u
= 1 u
1 u = 60
Number of adult tickets sold on Wednesday
= 4 u
= 4 x 60
= 240
4 p = 240
1 p = 240 ÷ 4 = 60
Number of adult tickets sold on Tuesday
= 1 p
= 1 x 60
= 60
Answer(s): (a) 140; (b) 60