There are 2 classes A&B in a school. The average weight of the Students in Class A & class B combined is 75 kg. The average weight of students in class A is 45 kg more than the average weight of students in Class B. Which of the following cannot be the ratio of the no.of. students in classes Ad B, ig it is known that the average weights of both The classes are integers? a)8:1 b)1:2 c)1:5 d)2:1