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 5 : 6. How many child tickets were sold on Thursday?
(a)
Number of adult tickets sold on Monday = 70
Number of adult tickets sold on Tuesday = 50
Number of adult tickets sold on Wednesday = 90
Number of adult tickets sold on Thursday = 40
Total number of adult tickets sold on Tuesday and Thursday
= 50 + 40
= 90
(b)
Total number of tickets sold on Monday = 6 u
Number of child tickets sold on Monday = 5 u
Number of adult tickets sold on Monday
= 6 u - 5 u
= 1 u
1 u = 70
Number of child tickets sold on Monday
= 5 u
= 5 x 70
= 350
2 p = 350
1 p = 350 ÷ 2 = 175
Number of child tickets sold on Thursday
= 4 p
= 4 x 175
= 700
Answer(s): (a) 90; (b) 700