Question

the formula for finding the sum of the whole numbers from 1 to any whole number, n, is n(n+1)/2. using this formula find the sum of the whole numbers from 1 to 10 A. 55 B. 75 C. 82 D. 98

Answer 1

Option A

Sum of whole numbers from 1 to 10 is 55

Solution:

Given that,

The formula for finding the sum of the whole numbers from 1 to any whole number, n is given as:

$sum = \frac{n(n+1)}{2}$

To find: sum of the whole numbers from 1 to 10

Whole numbers are positive numbers, including zero, without any decimal or fractional parts.

The whole numbers are:

{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, ......}

So sum of whole numbers from 1 to 10 means we have to add whole numbers from 1 to 10

Finding sum of whole numbers from 1 to 10:

Given formula is:

$sum = \frac{n(n+1)}{2}$

Here n = 10

$sum = \frac{10(10 + 1)}{2}\\\\sum = \frac{10 \times 11}{2}\\\\sum = 5 \times 11 = 55$

Thus sum of whole numbers from 1 to 10 is 55

Answer 2

Answer:

A.55

Step-by-step explanation:

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