It is required to convert 7 3/4 feet into inches. This is what the question wants us to deduce from the data that are provided in the question.
7 3/4 feet = 31/4 feet
We know that
1 feet = 12 inches
then
31/4 feet = 12 * (31/4) inches
= (3 * 31) inches
= 93 inches.
So on converting 7 3/4 feet into inches, the answer comes to 93 inches.