6. Ð a is the exterior angle of an isosceles D whose two sides, being the radii of the same circle are equal. Therefore, Ð a = Ð x + Ð x = 2 Ð x, or 2x ( since exterior angle is equal to the sum of the interior opposite angles ).

   Similarly Ð b = 2 Ð y or 2y.

   \ a + b = 2x + 2y

   Hence C.

7. Y=

   Hence A.

8. The lease perimeter of all rectangle with equal areas will be that whose length is equal to its width, i.e. when it is a square.
   e.g. Consider rectangles with area of each being 64 sq. units.

   

   Hence B.

9. Sum of the exterior angles of any polygon, irrespective of the number of sides is a constant and is equal to 360⁰.

   Hence C.

   [next page]

Index

Test 1

Section 1 : Verbal Section
Section 2 : Quantitative Section
Section 3 : Analytical Section
Section 4 : Quantitative Section
Section 5 : Verbal Section
Section 6 : Analytical Section
Section 7 : Verbal Section
Answer Key To Test 1

Answer Explanation To
Test 1
Section 1 : Verbal Section
Section 2 : Quantitative Section
Section 3 : Analytical Section
Section 4 : Quantitative Section
Section 5 : Verbal Section
Section 6 : Analytical Section
Section 7 : Verbal Section