Question

The mean of 5 numbers is 25, then the sum of 5 numbers is _______.

Answer 1

Mean = sum of all observations/ number of observations

According to the question,

25 = sum of observations/ 5
therefore,
sum of observations = 25 x 5
= 125

Thus, the sum of 5 numbers is 125.

Answer 2

Answer:

The mean of 5 numbers is 25, then the sum of 5 numbers is 125.

Step-by-step explanation:

Arithmetic Mean:

• The mean of a group of values can be calculated by dividing the total sum of the values by the total number of values.

• It refers to the average of a set of values.

• $Mean = \frac{Sum \ of \ the \ values}{Number \ of \ values}$

Given:

Mean of 5 numbers = 25

Find:

Sum of 5 numbers = ?

Solution:

The mean of a group of values is calculated using the formula,

$Mean = \frac{Sum \ of \ the \ values}{Number \ of \ values}$

⇒ $25 =\frac{Sum \ of \ values}{5}$

⇒ Sum of the values = $25 \times 5 = 125$

Therefore, the sum of 5 numbers is 125.

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