Answer: 10 dessert bowls.
Explanation:
To solve this problem you must apply the proccedure shown below:
1. Rewrite 1 1/4 ounces as a fraction:

2. You must add 5/4 ounces of strawberry preserve and 7/8 ounce of strawberry preserve, as following:

3. Now you must divide the result obtained by 1/5:
÷

4. Therefore, you can conclude that 10 dessert bowls can be completely fill.