In a quiz, positive marks are given for correct answers and negative marks are given for incorrect answers. If Jack’s scores in five successive rounds were `25,-5,-10,15 and 10,` what was his total at the end ?

Options

A. `35`
B. `12`
C. `32`
D. `37`

Explanation

To find Jack's total score after five rounds, we will add his scores together. The scores are: 25, -5, -10, 15, and 10.

### Step-by-Step Solution:

1. **List the Scores**:
- Jack's scores are: 25, -5, -10, 15, 10.

2. **Add the Positive Scores First**:
- The positive scores are 25, 15, and 10.
- Calculate:
\[ 25 + 15 + 10 = 50 \]

3. **Add the Negative Scores**:
- The negative scores are -5 and -10.
- Calculate:
\[ -5 + (-10) = -15 \]

4. **Combine Positive and Negative Totals**:
- Now, we will combine the total of positive scores with the total of negative scores:
- Calculate:
\[ 50 + (-15) = 50 - 15 = 35 \]

5. **Final Total**:
- Therefore, Jack's total score at the end is **35**.