I added all of the distances together and got 47.5
The answer is the option d, which is: d) 
The explanation for this problem is shown below:
1. Smplify the denominator and rewrite the numerator in this form:

2. Multiply the denominator and the numerator by the conjugated
and simplify the expression, as following:

3. As you can see, you obtain the expression shown in the option mentioned above.
Answer:
53/28
Step-by-step explanation:
100 g jam
- 19 g strawberries
- 53 g blackberries
- Sugar= 100-(19+53)= 28 g
Blackberry / sugar= 53/28