Question

A girl is twice as old as her brother and half as old as her father. After 22 years, her brother's age will be half of her father's age. What is the present age of the girl?​

Answer 1

Answer:

22 yrs

Step-by-step explanation:

Given

g=2b

g=f/2

we can write it as

2b=f /2(since g is common in both)

b=f/4

Also given

b+22=1/2(f+22)

substitute b=1/4f

(f/4)+22=1/2(f+22)

(f+88)/4=(f+22)/2

f=44

so g=f/2=44/2=22