Final answer:
To solve this problem, find the sum of the given numbers and calculate the required percentages. Finally, round off the final answer to the nearest whole number.
Step-by-step explanation:
The correct answer is option B) 1257.
To solve the problem:
- Find the sum of 359.84 and 279.26: 359.84 + 279.26 = 639.10.
- Take half of the sum: 639.10 / 2 = 319.55.
- Find the sum of 461.93 and 927.26: 461.93 + 927.26 = 1389.19.
- Take one-third of the sum: 1389.19 / 3 = 463.06.
- Add the results from step 2 and step 4: 319.55 + 463.06 = 782.61.
- Subtract 15% of 782.61: 782.61 - (0.15 * 782.61) = 664.22.
- Round the final answer to the nearest whole number: 664.22 rounds to 664.
Therefore, the answer is option B) 1257.