Number of ways the second grade students can sit on the first row is 5! = 5P5
Number of ways 15 first grade students can sit in the remaining 20 seats is 20P15
Therefore, required number of ways is 5P5 * 20P15. (option B)
<h3>
Answer: B) Hampton apartments</h3>
Divide the number of one-bedroom apartments over the number of two-bedroom apartments.
For Centerville, we have 42/50 = 0.84
For Hampton, we have 27/41 = 0.659 approximately
Hampton's ratio is the smaller of the two ratios.
