Answer:
85
Explanation:
First, we need to calculate the percentage of successful baskets, so it is calculated as:
[tex]\frac{68}{340}\times100\text{ \% = 20 \%}[/tex]Now, 20% of the baskets are successful, so if 17 represent 20%, the 100% is represented by:
[tex]100\text{ \%}\times\frac{17}{20\text{ \%}}=85[/tex]So, he has to do 85 attempts.
