If the age of a person is ‘x’, then ‘n’ years after today, the age = x + n. Similarly, n years in the past, the age of this would have been x – n years. Answer: Suppose that the present age of the son is = x years. Then the father’s age is (60 -x) years.

How do you calculate age problems?

Important Statements and Equations for “Problems based on Ages”:

1. If the present age is y, then n times the present age = ny.
2. If the present age is x, then age n years later/hence = x + n.
3. If the present age is x, then age n years ago = x – n.
4. The ages in a ratio a: b will be ax and bx.

What is John’s present age if after 10 years his age will be 5 times his age 5 years back?

Correct option is 4 We are given that John’s age after 10 years (x + 10) is 5 times his age 5 years ago (x-6).

How do you find someone’s age using math?

Math formula to determine someone’s age

1. First of all, pick the number of times a week that you would like to.
2. Multiply this number by 2.
3. Add 5.
4. Multiply it by 50.
5. If you have already had your birthday this year, add 1757 …. but if you haven’t, add 1756.
6. Now subtract the four digit year that you were born.

What is Krishna’s present age if after 10 years?

After 10 years his age will be x+10. Hence, Krishna’s present age will be 5 years.

What is Peter’s present age?

So, the correct answer is “ Present ages of Peter and Jony are 8 and 6 years respectively”.

What does it mean twice as old?

“twice as old as” means we will be multiplying by 2.

How can I find out someone’s age without asking?

Here are 15 ways to find out how old your date really is without actually asking:

1. Stalk him on social media. Social media is always a go-to.
2. Ask mutual friends.
3. Check LinkedIn.
4. Google him.
5. Search public records and data.
6. Analyze his name.
7. Bring up technology.
8. Discuss school memories.

How do I find someone’s age by year?

1. 1 Calculate Age from Birthdate.
2. 2 Get the birth date. Get the birth date of the person in question.
3. 3 Write down the current year. Write down the current year and subtract the person’s year of birth.
4. 4 Subtract one from your answer of 59.
5. 5 Verify your calculation.

What is linear equation give example?

The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line. An example of linear equation is y=mx + b. noun.

What is John’s present age if after 10 years his age will be 5 times in 5 years back?