Question

If the mean of 10no is 35 .If 3 is added to each no what will be new mean

Answer 1

Answer:

38

Step-by-step explanation:

If we add a new number in every number then then mean value also increase by the same number.

Example

Given the mean of 10 numbers = 35

The sum of 10 numbers = 10 × mean of 10 numbers

                                       = 10 × 35

                                       = 350

After adding 3 in every number

The sum of 10 numbers = 350 + ( 10 × 3 )

                                       = 350 + 30

                                       = 380

Then the mean of 10 numbers = $\dfrac{sum of 10 numbers}{10}$

                                                   = $\dfrac{380}{10}$

The sum of 10 numbers = 38