Question

If the mean of 3, 1, 5, x and 9 is 4, then the value of x is

Answer 1

Answer:

mean=3+5+7+9+x/5

Step-by-step explanation:

5=24+x/5. 5*5=24+x=25=24+x. x=25-24=x=1

Answer 2

Given:

Terms: 3, 1, 5, x and 9

Mean=4

To find:

The value of x

Solution:

The required value is 2.

We can calculate the required term by dividing the terms' sum by the total terms given.

So, the total terms=5

The sum of the given terms=3+1+5+x+9

=18+x

Using the values,

The terms' mean=Terms' sum/ total terms

4=(18+x)/5

4×5=18+x

20=18+x

20-18=x

2=x

Therefore, the required value is 2.