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The sum of 7 multiples of 13 is nearest ...

The sum of 7 multiples of 13 is nearest to:

A

360

B

365

C

370

D

375

Text Solution

AI Generated Solution

The correct Answer is:
To find the sum of 7 multiples of 13, we can follow these steps: ### Step 1: Identify the multiples of 13 The first 7 multiples of 13 can be calculated as follows: - 1st multiple: \( 13 \times 1 = 13 \) - 2nd multiple: \( 13 \times 2 = 26 \) - 3rd multiple: \( 13 \times 3 = 39 \) - 4th multiple: \( 13 \times 4 = 52 \) - 5th multiple: \( 13 \times 5 = 65 \) - 6th multiple: \( 13 \times 6 = 78 \) - 7th multiple: \( 13 \times 7 = 91 \) ### Step 2: Write down the multiples The multiples of 13 are: - 13, 26, 39, 52, 65, 78, 91 ### Step 3: Calculate the sum of these multiples Now, we need to add these values together: \[ 13 + 26 + 39 + 52 + 65 + 78 + 91 \] ### Step 4: Perform the addition Let's add them step by step: - \( 13 + 26 = 39 \) - \( 39 + 39 = 78 \) - \( 78 + 52 = 130 \) - \( 130 + 65 = 195 \) - \( 195 + 78 = 273 \) - \( 273 + 91 = 364 \) So, the total sum of the 7 multiples of 13 is \( 364 \). ### Step 5: Find the nearest number Now, we need to find the nearest number to 364. The options we can consider are: - 360 - 365 - 370 - 375 Among these, \( 364 \) is closest to \( 365 \). ### Final Answer Therefore, the sum of 7 multiples of 13 is nearest to \( 365 \). ---
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