Jim's uncle is 4 times as old as his nephew jim. in 10 years, jim's uncle age will be 20 years more than twice jim's age. how old is jim right now?

 The present age of Jim is 15 years.

Step-by-step explanation:  Given that Jim's uncle is 4 times as old as his nephew Jim. In 10 years, Jim's uncle age will be 20 years more than twice Jim's age.

We are to find the present age of Jim.

Let x years and y years be the present ages of Jim and his uncle respectively.

Then, according to the given information, we have

and

Thus, the present age of Jim is 15 years.

what is the original number? you forgot to add it.