Correct Answer:
C. 47.95
To solve this problem, we need to perform basic arithmetic operations involving addition and subtraction of decimal numbers. It's crucial to align the decimal points correctly and carry out the operations from left to right, following the standard order of operations.
- First, add the initial two numbers: 3889 + 12.952. Aligning the decimals, this becomes 3889.000 + 12.952 = 3901.952.
- Next, subtract the third number from this sum: 3901.952 − 3854.002.
- Performing the subtraction: 3901.952 - 3854.002 = 47.950. Since trailing zeros after the decimal point do not change the value, the answer is 47.95.
The incorrect options (A, B, D) likely result from errors in decimal alignment during addition or subtraction, or simple calculation mistakes. For instance, misplacing a decimal point or incorrectly borrowing/carrying digits can lead to these incorrect values.