Let's assume Anna's age is A and Jong's age is J.
According to the first statement, we have:
A = 4J
According to the second statement, in 4 years:
A + 4 = 2(J + 4)
Substitute the value of A from the first equation into the second equation:
4J + 4 = 2(J + 4)
4J + 4 = 2J + 8
2J = 4
J = 2
Now, substitute the value of Jong's age back into the first equation:
A = 4(2)
A = 8
Therefore, Anna is 8 years old and Jong is 2 years old.
6. Anna is now four times as old as her brother jong. In 4years, Anna's age will be twice Jong's age then. how old is each now?
1 answer