Himani’s father is 57years old. He is 5years older than four times Himani’s age. Find how old is Himanshi?

The correct answer is: 13yrs

Let Himani’s age = x yrs
Then, her father’s age = (4x+5)yrs
According to ques, father’s age =57yrs
4x+5=57
4x=57-5
4x=52
x=52/4
x=13yrs