Question

Evaluate the summation of "3i" from the lower limit of i = 1 to the upper limit of i = 3. Choose the correct result from the options below:

A. 124

B. 18

C. 210

D. 30

Answer 1

B. 18.The sum of the series "3i" from i=1 to i=3 is obtained by adding 3 × 1, 3 × 2, and 3 × 3, resulting in a total of 18. Therefore, the correct answer is option B.

Step-by-step explanation:

The correct answer is option B. Evaluating the summation of "3i" from the lower limit of i = 1 to the upper limit of i = 3 involves adding 3 times each number from 1 to 3. The calculation would look like this:

• 3 × 1 = 3
• 3 × 2 = 6
• 3 × 3 = 9

Adding these together gives us:

3 + 6 + 9 = 18

Thus, the sum of the series is 18, which corresponds to option B.

The summation of 3i from the lower limit of i = 1 to the upper limit of i = 3 can be evaluated by substituting the values of i into the expression and summing them up. In this case, the sum is 3(1) + 3(2) + 3(3) = 3 + 6 + 9 = 18.