The value of k' for which one of the roots of x^2-x+3k=0, is double of one of the roots of x^2-x+k=0 is

JEE Main Mathematics question

The value of for which one of the roots of , is double of one of the roots of is

Answer: (B)

Let be a root of with a root of : and . Subtracting times the first from the second gives

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-014076