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In the given Venn diagram, rectangle represents males, triangle represents people working in armed forces, circle represents doctors and square represents people working in rural areas. Which of the following number represents females who are working in armed forces as a doctor in urban areas ?

Venn diagram of a circle, a downward-pointing triangle, a wide rectangle at the lower left and a larger near-square at the right, overlapping, with the numbers 85, 61, 19, 24, 36, 11, 21, 29, 78, 31, 48 and 68 in the regions.

  • A.24
  • B.19
  • C.21
  • D.36

Answer: B

The number is 19.

The rectangle is the wide shape at the lower left and stands for males. The square is the larger near-square on the right and stands for rural workers. The triangle is for armed forces and the circle for doctors.

Females are the region outside the rectangle, urban areas are outside the square, so the number needed lies inside both the triangle and the circle but outside both four-sided shapes. That is the region marked 19, which sits in the triangle and the circle to the left of the square and above the rectangle.

24 is also in the triangle and circle but inside the square (rural). 21 is inside the rectangle and the square, and 36 is in the circle and the square but outside the triangle.

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