Question

Every​ week, Bob plays the guitar for three hours​, and his grade on each psych test is 75 percent. Last​ week, after playing for three hours​, Bob considered playing for an additional hour. He decided to play for another hour and cut his study time by one​ hour, but last week his psych grade was 55 percent. What was Bob​'s opportunity cost of the fourth hour of playing the guitar​?

Answer 1

20% psyche test scores

Explanation:

Given that every week, Bob plays the guitar for three hours​, and his grade on each psych test is 75 percent.

Last​ week, after playing for three hours​, Bob considered playing for an additional hour.

He decided to play for another hour and cut his study time by one​ hour, but last week his psych grade was 55 percent.

Bob​'s opportunity cost of the fourth hour of playing the guitar​

=His cut in scores in psyche test

=20%