The mean monthly salary of all employees in a company is Rs, 6000. The mean monthly salary of male and female employees are Rs.6200 and Rs. 5200 respectively. Find the percentage of males and females employed in the company.

The monthly salaries of 20 employees of a commercial enterprise are given below : Find the average of the rate of bonus of each employee.

The mean and S.D. of income of 50 men are Rs. 3200 and Rs. 525 respectively. The same for 40 women are Rs. 2,850 and Rs. 460 respectively. Find the S.D. of income for the combined group.

The total monthly salary of two persons is RS 7500. They spend 90% and 80% of their salaries respectively. If the ratio of their monthly savings is 3:4, find their monthly salaries.

In a business hourse, the weekly salaries of 30 employees are given below : Find the arithmetic mean of the bonus of the employees.

The frequency distritubution of the monthly salaries of 80 workers of a company are given below. Find the arithmetic mean of the salaries of the workers

In an industrial establishment, the coefficients of variation of wages of male and female workers were 55% and 70% respectively. The standard deviations were Rs. 22 and Rs. 15.40 respectively. Calculate the combined average wages for all workers if 80% of the workers were male.

The rate of monthly salary of an office assistant is increased annually in A.P. If he was drawing Rs. 2000 a month during the 11th year and Rs.3800 a month during 29th year, find out his initial salary and rate of annual increment. Find out also his salary at the time of retirement on completion of 32 years of service.

Two distributions have the same mean Rs. 7500 and standard deviations Rs. 9 and Rs. 12 respectively. If C.V. of the first distribution is 24% , find the C.V. of the second distribution.

The table below gives the percentage distribution of female teachers in the primary schools of rural areas of various states and union territories (U.T) of India. Find the mean percentage of female teachers using all the three methods.

Find the principal of which the monthly interest is 1Rs at the rate of 5% annual simple interest.