Dhoni is now two fifth of his older brother’s age and two years from now he will be half of his older brother’s age.
Two years ago, dhoni was only one-fourth the age of his older brother age at that time.
How old is dhoni now ?
Check your answer:-
Click here to See Solution
Lets assume dhoni and his older brother are x and y years old as of now.
so x = 2y/5;
and
x+2 = (y+2)/2 => 2x +4 = 2+y => 2x – 5x/2 = -2 => x/2 = 2 => x = 4
and
x-2 = (y-2)/4 => 4x – 8 = y-2 => 4x – 5x/2 = 6 => 3x/2 = 6 => x = 4
and y = 10
so dhoni is 4years old now.
so x = 2y/5;
and
x+2 = (y+2)/2 => 2x +4 = 2+y => 2x – 5x/2 = -2 => x/2 = 2 => x = 4
and
x-2 = (y-2)/4 => 4x – 8 = y-2 => 4x – 5x/2 = 6 => 3x/2 = 6 => x = 4
and y = 10
so dhoni is 4years old now.
Facebook Comments
Dhoni is 4 years old and his older brother is 10.
Next time, don’t use Indian culture again. (i used same account, name changed)