Question

if average salaries of two groups of employees are rs 1500 and 2200 and there are 80and 70 employees in the two group find the mean of the combined group​

Answer 1

Answer:

1826.67

Step-by-step explanation:

8 7

1500 2200

2000 {assumed mean}

1500 to 2000 - increase of 500

500×8 = 4000

22 to 20 - decrease of 200

200×7=1400

4000 - 1400 = 2600

to make, 2600 equal to zero,

we have to subtract it from 2600

and it will be done with { 8+ 7} = 15

-2600/15= -173.33

2000- 173.33 =1826.67