Question

Two thirds of the students studying in classes 1 to 10 in a school are boys. 3/4 of these are in classes 1 to 8.what fraction of the students studying in classes 1 to 8 are boys.

Answer 1

HEY MATE,

Although there are several ways to solve this ,

I will not get into those 'x' business.

We know 4/5 of the children are boys therefore the remaining 1/5th must be girls.

Now it is being said the no. Of girls is 200.

Hence , if 1/5th corresponds to 200.

Then the whole part or the total number of students will be equal to 200*5=1000.

And the number of boys would be 1000–200= 800.

*This numerical problem resembles the current situation of engineering colleges in India* XD