Age of Rahul's father is 3 times Rahul's age now.After 15 years he will be twice the age of Rahul. Find their present age.
Getting late...let's see if we set this up correctly:
3R=F
F = 2R + 15 (I'm not quite sure about this sentence, but substitute and solve for one of the unknowns.)
I chose F:
3R = 2R + 15
R = 15
Substitute the value of R into one of the sentences and find F. 3R = 45 = F. Check in the other sentence. F = 2(15) + 15 = 45. Works. ( If I wrote the second sentence correctly.)
13
Rahul's father's age = -36
To find Rahul's present age, we'll assume his age as 'x' years.
According to the problem, Rahul's father's age is currently 3 times Rahul's age. So, Rahul's father's age would be 3x years.
After 15 years, Rahul's age would be x + 15, and his father's age would be 3x + 15.
The problem further states that after 15 years, Rahul's father will be twice the age of Rahul. So, the equation can be set up as follows:
3x + 15 = 2(x + 15)
Now, let's solve this equation to find Rahul's age:
3x + 15 = 2x + 30 (distributing the 2)
3x - 2x = 30 - 15 (combining like terms)
x = 15 (simplifying)
Therefore, Rahul is currently 15 years old.
To find his father's age, we substitute Rahul's age (x = 15) into the earlier equation:
Father's age = 3x = 3 * 15 = 45
Hence, Rahul's present age is 15 years, and his father's age is 45 years.