Final answer:
The precision of the number 2546.245 is 7, and the scale is 3, making the correct answer (b) Precision 7 Scale 3.
Step-by-step explanation:
The question asks about the precision and scale of the number 2546.245. The term 'precision' refers to the total number of significant digits in a number, both before and after the decimal point, while 'scale' refers to the number of significant digits after the decimal point.
For the number 2546.245, the precision is 7, because there are seven digits in total. The scale is 3, as there are three digits after the decimal point. Therefore, the correct answer to the question is:
Answer: b) Precision 6 Scale 3