A class has 30 students. The following prizes are to be awarded to the students of this class: first and second in Mathematics; first and second in Physics first in Chemistry and first in Biology. If N denote the number of ways in which this can be done, then

A class has 30 students. The following prizes are to be awarded to the

1.	A class has 30 students. The following prizes are to be awarded to the students of this class: first and second in Mathematics; first and second in Physics first in Chemistry and first in Biology. If N denote the number of ways in which this can be done, then
Answer» A class has 30 students. The following prizes are to be awarded to the students of this class: first and second in Mathematics; first and second in Physics first in Chemistry and first in Biology. If N denote the number of ways in which this can be done, then