The present age of a brother is 6 years more than four times the age of his.........Find the present age of the brother.

Question

The present age of a brother is 6 years more than four times the age of his sister.
Six years hence, brother's age will be four years more than thrice the age of the sister.
Find the present age of the brother.

Answer 1

46

---

b=4s+6 ----> (1)
b+6=3*(s+6)+4 ----> (2)
b=?

---

(2) -> b=3s+16 ---> (3)
Comparing (1) & (3)---> 4s+6=3s+16 -> s=10 -> b=46