Question

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?

Answer 1

Jim's Uncle is U
Jim is J

Answer 2

nah Jim is x and the uncle is 4x

Answer 3

So U=4J

Answer 4

and (U+10)=20+2J

Answer 5

So plug in U=4J into U+10=20+2J

Answer 6

4J+10=20+2J
2J=10
J=5

Answer 7

So Jim is 5 years old.

Answer 8

Solve the following for u and n, uncle and nephew respectively.\[\{u=4 n,u+10=2 (n+10)+20\} \]\[\{n=15,u=60\} \]

Answer 9

Oh yea I made a mistake... Good Job @robtobey

Answer 10

Thank you for the medal.