Question

Students were standing in a row if one student is extra in a row there would be 2 rows less if one student is less in a row there would be 3 rows more

Answer 1

Answer:

Let the original number of rows =x

Let the original number of students in each row =y

Total number of students in class = Number of students × Number of rows =xy

According to problem

Case 1

Total no of students =(y+1)(x−2)=xy

⇒xy−2y+x−2=xy

⇒x−2y=2 ...(1)

Case 2

Total no of students =(y−1)(x+3)=xy

⇒xy+3y−x−3=xy

⇒x−3y=−3 ...(2)

Subtracting eq(1) from eq(2) we get

−y=−5

⇒y=5

Putting the value of y in eq(1)

x−2(5)=2

⇒x=12

Hence we get x=12 and y=5

Total no. of students =xy=60

Answer 2

Answer: 60

Step-by-step explanation: I wish you would like it