Question

There were 2789108480 in a school .
There were 123848069 in a school .
2346 left the school.
1907 left the school.

How many are there now?
How many are there now?


And number of boys + number of girls​

Answer 1

In the first case

Number of boys =660×2213=390

Number of girls =660×229=270

Let the number of boys who left the school be x.

According to the question,

⇒270+30390−x=56

390−x=360

x=390−360=30.

Answer 2

In the first case

Number of boys =660×2213=390

Number of girls =660×229=270

Let the number of boys who left the school be x.

According to the question,

⇒270+30390−x=56

390−x=360

x=390−360=30.

Answer 3

In the first case

Number of boys =660×2213=390

Number of girls =660×229=270

Let the number of boys who left the school be x.

According to the question,

⇒270+30390−x=56

390−x=360

x=390−360=30.

Answer 4

In the first case

Number of boys =660×2213=390

Number of girls =660×229=270

Let the number of boys who left the school be x.

According to the question,

⇒270+30390−x=56

390−x=360

x=390−360=30.

Answer 5

In the first case

Number of boys =660×2213=390

Number of girls =660×229=270

Let the number of boys who left the school be x.

According to the question,

⇒270+30390−x=56

390−x=360

x=390−360=30.

Answer 6

In the first case

Number of boys =660×2213=390

Number of girls =660×229=270

Let the number of boys who left the school be x.

According to the question,

⇒270+30390−x=56

390−x=360

x=390−360=30.

Answer 7

In the first case

Number of boys =660×2213=390

Number of girls =660×229=270

Let the number of boys who left the school be x.

According to the question,

⇒270+30390−x=56

390−x=360

x=390−360=30.