Answer:
Rohit is 6 years old
James is 15 years old
Step-by-step explanation:
Rohit : James
2 : 5
the difference between their units is 3
Now we add the 9 years
5 : 8
the difference between their units should be 3 because they both age every year. the question was nice enough to give to same amount of units
Now we subtract James's original 'unit age' from his new one
8u - 5u = 3 u
We also need to make sure the difference between Rohit's original 'unit age' is 3
5u - 2u = 3u
this 3 units represent the 9 years that have passed
3 units = 9 years
To find James's age all we ahve to find is their original unit number
James (5 units) -> 3 × 5
= 15
same for Rohit
Rohit (3 units) -> 3×3
= 9
hence, Rohit's and James's ages are 9 and 15 respectively
