Question

A dance group want to stand in rows and columns during their performance that the number of dancers in the rows and columns are saying if they are 64 in the group how many members should be there in each row...,...,..... please show the solutions.​

Answer 1

Answer:

8 is the answer. Mark me the brainliest

Answer 2

the number of rows be x rows and the number of students in each row be y students .

Then the total number of students in a class =xy students.

∴ According to the question ,

(x−2)(y+1)=xy

⇒xy+x−2y−2=xy

x−2y=2⟶(i)

And

(x+3)(y−1)=xy

⇒xy−x+3y−3=xy

−x+3y=3⟶(ii)

x−2y=2

−x+3y=3

On adding , y=5 students.

putting the value of y in equation ⟶(i)

x−2(5)=2

x=12 rows.

∴ Total number of students in a classroom =(12×5)students =60 students.

the answer is 8 .. ..... ... hope it's help you