1.

If the mid point between the points `(a+b, a-b)` and `(-a, b)` lies on the line `ax+by=k`, what is k equal to ?A. `a//b`B. `a+b`C. `ab`D. `a-b`

Answer» Correct Answer - C
Given points are `(a+b, a-b)` and `(-a, b)`
Mid point is `((a+b-a)/2, (a-b+b)/2)=(d/2, a/2)`
Since, it lies on `ax+by=k`
`:. a(b/2)+b(a/2)=k implies k=ab`


Discussion

No Comment Found

Related InterviewSolutions