The ages of two friends Ani and Biju differ by 3 years.Ani's father Dharman is twice as old as Ani and Biju is twice as old as his sister Cathy.The ages of cathy and Dharman differ by 30 years.Find the ages of Ani and Biju.

Janhu is twice as old as Indra. Six years ago Janhu was four times as old as Indra. Find their present ages.

One year ago,a man was 8 times as old as his son.Now his is age is qual to the square of his son's age.Find his present age.

Word Problem on Age 8 years ago father's age was thrice that of his son's age. 2 years hence father's age will be twice that of his son's age. Find the ratio of the ages of father and son after 10 years.

The age of a man is twice the square of the age of his son.Eight years hence,the age of the man will be 4years more than three times of the age of his son.Find their present ages.

It is claimed that two cesium clocks, if allowed to run for 100 years, free from any disturbance, may differ by only about 0.02 s. What does this imply for the accuracy of the standard cesium dock in measuring a time-interval of 1 s?

Form the pair of linear equations in the following problems,and find their solutions(if they exist) by the elimination method:(ii) Five years age,Nuri was thrice as old as Sonu.Ten years later,Nuri will be twice as old as Sonu.How old are Nuri and Sonu?