Question 42

14.989

The sum of 3.7, 7.289, and 4 is 14.989 when all decimal places are reported. This result maintains the precision of the decimal numbers involved in the calculation.

A) 14.989

Option A is correct because it accurately reflects the sum of the numbers when calculated with all decimal places. Performing the addition: 3.7 + 7.289 + 4 equals 14.989, thus ensuring that the decimal precision is preserved in the final result.

B) 5.226

Option B is incorrect as it does not represent the sum of the numbers given in the question. The numbers 3.7, 7.289, and 4, when added together, do not yield a result anywhere near 5.226.

C) 15

Option C is incorrect because rounding the sum to the nearest whole number neglects the decimal precision required in the answer. The actual sum calculated is 14.989, which is significantly more precise than simply stating 15.

D) 15.07

Option D is also incorrect as it misrepresents the sum of the values provided. The sum of the figures is not 15.07, and thus, this option fails to account for the actual values being summed.

Conclusion

The correct answer is definitively A) 14.989, as it represents the accurate sum of the numbers while preserving the necessary decimal places. All other options either miscalculate the sum or lack the precision required by the question, making them incorrect.