Question

the average of 5 numbers is 7. when one more number is added the average becomes 10. what number was added?

Answer 1

Answer:

13

Step-by-step explanation:

for example, Sum of 5 no. = 7×5=35

Sum of 8 no. = 8.5×8=68

Sum of added all three no. = 68 - 35 = 33

average of three new numbers = 33/3=11

Answer 2

The number 25 is added then the average becomes 10.

What is an average?

The average is defined as the ratio of the sum of the data to the total numbers of the data.

Average = ( Sum of the numbers ) / ( number of the data )

Given that the average of 5 numbers is 7. when one more number is added the average becomes 10.

The number added is calculated as:-

Sum of the numbers = 5 x 7 = 35

Let x is the number added.

Sum of the numbers = 35 + x

We know that some of the numbers = 10 x 6

35 + x = 10 x 6

35 + x = 60

x = 60 - 35

x = 25

Hence, the number added is 25.

To know more about the average follow

https://brainly.com/question/8728504

#SPJ2