Barry is 6 yrs old.Larry is twice as old as Barry.Terry is the same number of years older than Barry as he is younger than Larry.How many years old is Terry?

Answer 1

just put the words into symbols:

B = 6
L = 2B
T-B = L-T

now start substituting
B=6, so

L=12
T-6 = L-T

Now we know that L=12, so

T-6 = 12-T
2T = 18
T = 9

Answer 2

Thank you Steve