Question

The mean annual salary paid to all employees was rs 5000 .the mean annual salary paid to male and female employees were rs 5200 and 4200 respectively .the percentage of male workers in the company is

Answer 1

Solution:-

given by:-

》avarage worker paid (n)= 5000

》let male and female number of worker is x ,y

》both paid are = n1= 5200 ,n2= 4200

acourding to quetion:-

》n = (n1x + n2x)/(x+y)

》5000 =( 5200x + 4200x)/(x+y)

》5000x +5000y = 5200x+4200y

》5000y -4200y= 5200x-5000x

》800y = 200x

》x/y = 800/200

》x/y = 4/1

》y/x = 1/4 = y:x= 1:4

》female worker is = 1
》male worker is = 4

》total workers = 5

》(by percentage (4/5×100) = 4×20 = 80%) ans