A MAN IS 3 TIMES AS OLD AS IS SON AFTER15 YEARS HE WILL BE TWICE AS OLD AS HIS SON FIND THEIR PRESENT AGES
Answers
Answer:
Let the age of son = x.
Then the age of man will be 3 times as old as his son = 3x.
After 15 years:
Age of son = x + 15.
Age of man = 3x + 15.
Given that Man will be only twice as old as his son.
3x + 15 = 2(x + 15)
3x + 15 = 2x + 30
3x = 2x + 15
x = 15.
Therefore the age of son = 15 years.
the age of man = 45 years.
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Given :
- A man is 3 times as old as his son.
- After 15 years he will be twice as old as his son.
To find :
- Their present ages =?
Step-by-step explanation :
Let, the present age of son be x.
Then, the present age of man be 3x.
After 15 years son's age = x + 15
After 15 years man's age = 3x + 15
According to the question :
➮ 3x + 15 = 2(x + 15)
➮ 3x + 15 = 2x + 30
➮ 3x - 2x = 30 - 15
➮ x = 15
Therefore, We got the value of, x = 15.
Hence,
Present age of the son, x = 15 years.
And Present age of man, 3x = 3 × 15 = 45 years.