AktiraAktira JEE
Subscribe
MathsJEE Main 2 Apr 2026, Shift 1·Q13·MCQ·Moderate

3D Geometry · Intersection of two lines

If the point of intersection of the lines x+13=y+a5=z+b+17\dfrac{x+1}{3} = \dfrac{y+a}{5} = \dfrac{z+b+1}{7} and x−21=y−b4=z−2a7\dfrac{x-2}{1} = \dfrac{y-b}{4} = \dfrac{z-2a}{7} lies on xy-plane, then the value of a+ba + b is:
  1. (1)2
  2. (2)5
  3. (3)7
  4. (4)9

Video solution coming soon

We're animating every PYQ step by step. Subscribe to get them first.

Subscribe

See the full 2 Apr 2026, Shift 1 paper

More on Intersection of two lines