Question

Find the average of 7 numbers if the sum of the first 4 number is 180 and the sum of other three number is 100.

Answer 1

Answer:

260 is average number of 7

Answer 2

Answer:

Average of 7 numbers is 40

Step-by-step explanation:

Find the average of 7 numbers

There are 7 numbers

The sum of the first 4 number is 180

a+b+c+d=180

the sum of other three number is 100.

e+f+g=100

So, add the 2 parts of number

(a+b+c+d)+(e+f+g)

180+100=280

To find average

Addition of Seven number /Total number

Average=280÷7

Average of 7 numbers is 40