1.

The Ratio Of The No. Of White Balls In A Bag To That Of Black Balls Is 1:2. If 9 Grey Balls Are Added The Ratio Of Nos. Of White, Black And Grey Become 2:4:3. How Many Black Balls Were In The Bag?

Answer»

Consider x BLACK BALLS were there.

After ADDING 9 grey balls the ratio is 4/3.

That means, x/9 = 4/3.

On solving we will get x = 12.

Consider x black balls were there.

After adding 9 grey balls the ratio is 4/3.

That means, x/9 = 4/3.

On solving we will get x = 12.



Discussion

No Comment Found

Related InterviewSolutions