In a public show 75 % of the seats were filled. If there were 700 seats in the hall, how many seats were vacant? Choose the correct answer:  A) 100  B) 110  C) 120  D) 175  E) 150
75 % of 600   = 75/100 × 700   = 450   Therefore, the number of vacant seats = 700 - 450 = 175.   Answer:175
<result>D</result>
In a public show 75 % of the seats were filled. If there were 700 seats in the hall, how many seats were vacant?