In the given figure, the numbers associated with the rectangle, triangle, and ellipse are 1, 2, and 3, respectively. Which one among the given options is the most appropriate combination of P, Q, and R?

A.

P = 6; Q = 5; R = 3

B.

P = 5; Q = 6; R = 3

C.

P = 3; Q = 6; R = 6

D.

P = 5; Q = 3; R = 6

Solution:

We are told:

  • Rectangle = 1

  • Triangle = 2

  • Ellipse = 3

We need to determine the value of P, Q, and R.


Step-by-step analysis:

From the diagram:

  • Region labelled 1 is only in the rectangle → ✅ Rectangle only

  • Region labelled 2 is only in the triangle → ✅ Triangle only

  • Region labelled 3 is only in the ellipse → ✅ Ellipse only

  • Region labelled 4 is in a rectangle and an ellipse (intersection of 1 and 3)

We can say:

Shape ComboLabel
Only Rectangle1
Only Triangle2
Only Ellipse3
Rectangle + Triangle (1 + 2)3
Rectangle + Ellipse (1 + 3)4
Triangle + Ellipse5
Rectangle + Triangle + Ellipse6

Region P: lies inside rectangle + triangle + ellipse = 6

Region Q: lies inside the triangle + ellipse = 5

Region R: lies inside rectangle + triangle = 3

✅ Final Answer: (A) P = 6; Q = 5; R = 3