Can anybody explain no 19 and 24? I didn’t get the meaning of the questions. Two photos are attached.

In question 19 you basically have a line going through a circle so the answer should be (C)2 as a line can intersect a circle at most on two points.

And in question 24 first you have to find out in which year are the imports nearly equal to each other and it seems like in 1975 the two line graphs are the closest. And the total import in that year is 75 so the answer should be D.

Thanks for your response.

In number 19 shouldn’t we take point P into consideration?

Point p is in the circle C. So if we count common points of C and L we should consider point P.

I solved the problem in this way. But it was incorrect, Can you tell me where I’m making mistake?

The point P lies inside the circle, it is not a part of the circle. The only points we can consider here are the points located along the circumference of the circle. And since the line only intersects the circle at 2 points the common points are 2.