Question

Carl is ten years older than Jose. Five years ago Carlos was three times as old as Jose. How old is Jose now?

Answer 1

Answer:

Jose is 10 years old now

Explanation:

Let carl's age be c

Let Jose's age be j

Carl is 10 years older than Jose

c = j + 10.........................(1)

Five years ago, Carlos was three times as old as Jose

c - 5 = 3(j - 5).......................(2)

Substitute equation (1) into equation (2)

j + 10 - 5 = 3(j - 5)

j + 5 = 3j - 15

3j - j = 5 + 15

2j = 20

j = 20/2

j = 10

Therefore, Jose is 10 years old now