The difference between the simple interest and the compound interest compounded annually at the same rate of interest on a sum of money at the end of two years is INR 50/-. What is definitely the rate of interest percent per annum?

The total present ages of P and Q is 25 years more than the present age of R. If present age of Q is 5 years older than R, what is P’s present age ? ( In years)

A’s monthly income INR 10,000/- less than B’s monthly income. B’s monthly income is INR 15,000/- less than C’s monthly income. If the total monthly income of A,B and C together is INR 65,000/-, what is A’s monthly income ?

The numerical value of area of a rectangular field is 90 times the numerical value of its breadth. If the perimeter of the filed is 240m, what is the breadth of the field ?

What is the respective ratio between total number of employees (male and female) in companies J,K and N together in 2005 and total number of employees (male and female) in the same companies together in 2007?

Total number female employees in company J during all the given years together is what percent of the total number of male employees in Company I during all the given years together ?