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 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 2 : 3. How many child tickets were sold on Thursday?
(a)
Number of adult tickets sold on Monday = 90
Number of adult tickets sold on Tuesday = 40
Number of adult tickets sold on Wednesday = 30
Number of adult tickets sold on Thursday = 70
Total number of adult tickets sold on Tuesday and Thursday
= 40 + 70
= 110
(b)
Total number of tickets sold on Monday = 3 u
Number of child tickets sold on Monday = 2 u
Number of adult tickets sold on Monday
= 3 u - 2 u
= 1 u
1 u = 90
Number of child tickets sold on Monday
= 2 u
= 2 x 90
= 180
2 p = 180
1 p = 180 ÷ 2 = 90
Number of child tickets sold on Thursday
= 4 p
= 4 x 90
= 360
Answer(s): (a) 110; (b) 360