Answer:
210 years
Step-by-step explanation:
To find the solution to this problem, we need to find the lowest common multiple of these numbers. Hence, we need a number that can perfectly divide the numbers at the same time.
The lowest common multiples of these numbers is found to be 210.
In likewise manner, he will buy basketball and soccer together in the next 30 years, soccer and baseball together in the next 42 years and basketballs and baseballs in the next 35 years.
