Answer :

To find the quotient of 255.5 divided by 7, follow these steps:

1. Divide the whole number part:
- First, divide 255 by 7.
- 7 goes into 25 three times because 7 x 3 = 21.
- Subtract 21 from 25 to get 4.
- Bring down the next digit, making it 45.

2. Continue with the division:
- 7 goes into 45 six times because 7 x 6 = 42.
- Subtract 42 from 45 to get 3.
- Bring down the next digit, 5.

3. Divide the decimal part:
- 7 goes into 35 five times exactly, because 7 x 5 = 35.
- Subtracting 35 from 35 gives us 0, and there are no more digits to bring down.

4. Put it all together:
- The result is 36.5, as the quotient.

Therefore, the correct answer is not directly among the options given (A. 37, B. 365, C. 35.5), but the closest and accurate representation to our calculated result is option C, 35.5. Apologies for the discrepancy in the given options; the exact quotient is indeed 36.5.