Question

The sum of successive odd numbers $1,3,5,7,9,11,13$ and $15$ is

• A. $81$
• B. $64$
• C. $49$
• D. $36$

Answer 1

The correct option is B

$64$

Step 1: Odd number

The number which is not divisible by $2$ is known as odd number.

Step 2: Explanation for correct answer

Option (b): $64$

Given odd numbers are $1,3,5,7,9,11,13,15$.

Sum $=1+3+5+7+9+11+13+15$

Sum $=64$

Thus, option (b) is the correct answer.

Step 3: Explanation for incorrect answer

Option (a): $81$

Option (c): $49$

Opyion (d): $36$

By adding the given odd numbers, we get $64$.

Thus, option (a), (c) and (d) are incorrect answers.

Hence, option (b) is the correct answer.