Hello ,

Yes projectile motion is in course of JEE Mains and projectile on inclined plane is just a variation of  projectile motion problem , so it has chance to appear in JEE Mains question papers . You just need to take in consideration of components of gravity in X and Y direction acting on object in projectile motion including velocity and acceleration provided initially , you also need to break this initial velocity and acceleration in X and Y direction to find answer .