Form the equation:A man’s age after 15years will be the square of his age 15 years ago.

A man’s age after 15 years will be the square of his age 15 years ago. What is his present age?

One year ago a man’s age is eight times the age of his son .At present man’s age is the square of son’s age. Find the present age.

Two years ago Salim's age is three times his daughter's age. After 6years,Salim's age will be 4 more than twice his daughter's age. Calculate the age of Salim and his daughter.

The product of Layas’s age before 5 years and after 8 years is 30. Find the present age.

Age of Vineetha is twice her sisters age. After 4 years the product of their ages will be '160 .' Find the present ages of both.

The ages of Ajay and Alwin are in the ratio 9:4 . After seven years, the ratio of their ages will be 5:3 . Find their ages.

If half-life of a substance is 5 years, then the total amount of substance left after 15 years when initial amount is 64 g is

There are 8 țeachers in a school. When a 35 year old teacher was transferred and ahother teacher joined, the average age was Increased by 2 years. How. old is the new teacher?

A body of mass 50 kg stars from rest. If its velocity changes to 15 m/s after 10 seconds, calculate the change in momentum ? What will be the rate of change of momentum ?