Question

Rohan 21 years younger than his father. After seven years, their ages will be in the ratio 3:4
Find their present age.​

Answer 1

Answer:

Rohan's father's age be

$xyears$

Rohan's age be

$(x - 21)years$

After seven years their ages will be

Rohan's father's age

$(x + 7)years$

Rohan's age

${(x - 21) + 7}years$

According to question

$\frac{x + 7}{x - 14 } = \frac{4}{3}$

By solving the equation x=77years

Rohan's father age will be 77years and Rohan's age will be 56 years