Question

in first five months sales in rs of a store is 54000,62000,55000,40000 and 72000 respectively. if average of sales of first six months is rs 60000. what was the sales in 6th month​

Answer 1

Answer:

answer is definately 77000.

Answer 2

The sales in the 6th is Rs. 77000.

Given:

The first five months sales in Rs. of a store are 54000, 62000, 55000, 40000 and 72000. The average sales of the first six months are Rs. 60000.

To Find:

The sales in 6th month​.

Solution:

The average of observations is computed by adding all the observations and then dividing the resultant by the number of observations.

Add 54000, 62000, 55000, 40000 and 72000.$54000+62000+55000+40000+72000=283000$

Let the sales in the 6th month be x. Add 283000 and x, and then divide by 6 because the total of 6 months has been taken into observation.

$\frac{283000+x}{6}$

Equate the above-obtained expression to 60000 and find x.

$\frac{283000+x}{6}=60000\\283000+x=360000\\x=360000-283000\\=77000$

Thus, the sales in the 6th is Rs. 77000.