Question

49. The average salary of the workers
in an ofice is Rs. 1800. IF five
workers are appointed, then their
total salary increases by Rs. 1000
and average salary decreases by Rs.
200. Find the present number of
workers​

Answer 1

Answer:

average salary is 1800

present salary = 1800+1000+200= 3000

present salary = 3000

Answer 2

Answer:

average = total sum of salary/ no. of workers

and it is given that, Rs. 1800

1800= s/ n = s= 1800n [eq 1]

when 5 more workers are appointed,

average = 1600 = s + 1000/ n +5

= 1600 x[ n+5] = 1600n + 8000 = s+ 1000

1600 n + 7000 = s [eq2]

from eq 1 and 2,

1600n + 7000 = 1800n

200n = 7000

n = 35

the present no of workers = n+5 =40.

present number of workers = 35 +5 =40

Step-by-step explanation:

Hope it helps you dear.