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 4 : 5. How many child tickets were sold on Thursday?
(a)
Number of adult tickets sold on Monday = 35
Number of adult tickets sold on Tuesday = 10
Number of adult tickets sold on Wednesday = 5
Number of adult tickets sold on Thursday = 40
Total number of adult tickets sold on Tuesday and Thursday
= 10 + 40
= 50
(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 = 35
Number of child tickets sold on Monday
= 4 u
= 4 x 35
= 140
2 p = 140
1 p = 140 ÷ 2 = 70
Number of child tickets sold on Thursday
= 3 p
= 3 x 70
= 210
Answer(s): (a) 50; (b) 210