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.

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.

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.

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

The simple interest at 5 % got for a certain amount after 2 years is 200 rupees. If interest is compounded annually, what would be the interest for same amount at the same rate after 2 years?

A trust fund has Rs. 30,000 that must be invested in two different types of bonds. The first bond pays 5% interest per year and the seconnd bond pays 7% interest per year. Using matrix multiplication, determine how to divide Rs. 30,000 among the two types of bonds, if the trust fund must obtain an annual total interest of: Rs. 1800

A trust fund has Rs. 30,000 that must be invested in two different types of bonds. The first bond pays 5% interest per year and the seconnd bond pays 7% interest per year. Using matrix multiplication, determine how to divide Rs. 30,000 among the two types of bonds, if the trust fund must obtain an annual total interest of: Rs. 2000

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