Question

Hello !!!


Class 10 :-
Question is in the photo.



All the best !!!​

Answer 1

hey there

refer to attachment

Answer 2

SOLUTION❤✌

Let the numbers of students in hall A=x

& Numbers of students in hall B=y

1).When be sent 10 students from hall A to B:

Number of students left in hall A=x-10

& Number of students in hall b=y+10

In this case no. of students in each hall would be equal, we get:

⇒ x-10=y+10

⇒x-y=20--------------(1)

2).When 20 students are sent from B to A:

Number of students in hall A=x+20

& Number of students in hall B=y-20

In this case no. of students in hall A becomes double the no. of students in hall B, we get:

⇒x+20=2(y-20)

⇒x+20=2y-40

⇒x-2y=-60--------------(2)

by subtracting (2) from (1),we get:

⇒x-2y=-60

   x-y= 20

   -  +   -

____________

⇒-y=-80

⇒y=80

And,

⇒x-y=20

⇒x-80=20

⇒x=20+80

⇒x=100

So, there are 100 students in hall A and 80 students in hall B.

hope it helps✌

Mark brainliest⊕