%,

[mathematics]

In a class of 30 students , 40% of them are boys .

What are the numbers of boys in this class ?

My work ::

30 ----> 40 % , if 50 % gives 15 (half) , 50% -- > 15
40% --- > 12 boys .

 

[Aladdin]

In a class of 30 students , 40% of them are boys .

What are the numbers of boys in this class ?

My work ::

30 ----> 40 % , if 50 % gives 15 (half) , 50% -- > 15
40% --- > 12 boys .

This is a Mess ... Not clear

 

[Denis]

(30 * 40) / 100 ; kapish?

 

[Aladdin]

(30 * 40) / 100 ; kapish?

Yep Denis, but < mathematics > ways is correct too.

 

[Denis]

Ya Aladdin; so?

 

[Mrspi]

(30 * 40) / 100 ; kapish?

Yep Denis, but < mathematics > ways is correct too.

What about Denis's answer was NOT a "mathematics way"??

40% of 30 = (40/100)*30 = (40*30)/100

 

[Aladdin]

(30 * 40) / 100 ; kapish?

Yep Denis, but < mathematics > ways is correct too.

What about Denis's answer was NOT a "mathematics way"??

40% of 30 = (40/100)*30 = (40*30)/100

I didn't meant this , it's but the name of the member is (((( mathematics ))))