Mark and Luke's heights from ages 10 to 15 are recorded as shown below. At what age were both of them of the same height?
Pradeep's age is 15 and his father's age is 40. We record the ages of both of them every 2 years from now. As pradeep's age increases with his father's age, both the readings are in direct proportion.
The graph below shows average height of girls at different ages. What will be the age of the girl whose height is 65 inches?