Question

the average of the 10ns is 30 what whould be added them to make the average 40?​

Answer 1

Answer:

1 should be added to make the available 40

Answer 2

Answer:

140 should be added to make the average 40.

Step-by-step explanation:

Average of the number refers to the mean of the numbers.

The average of 10 numbers = 30

The sum of the 10 numbers:

Average × Quantity of numbers

⟹ 30 × 10

⟹ 300

Now, we need to add a number so that the average becomes 40.

The sum of the 11 numbers:

Average × Quantity of numbers

⟹ 40 × 11

⟹ 440

The sum of 10 numbers + 11th number = 440

300 + 11th number = 440

11th number = 440 - 300

11th number = 140

So, 140 should be added to make the average 40.