UPSC Prelims 2007·GS1·polity-and-governance·governance

Consider the following statements: 1. The series of the International Paper Sizes is based on A0 size Whose area is 0.5 cm2 (approximately). 2. The area of A4 size paper is 1/8th of that of the A0 size paper. Which of the statements given above is/are correct?

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  1. A1 only
  2. B2 only
  3. CBoth 1 and 2
  4. DNeither 1 nor 2Correct

Explanation

The correct answer is D because both statements are incorrect. Statement 1 is incorrect: The International Paper Sizes (A series) are indeed based on A0, but the area of A0 is 1 square meter (1 m2), which is 10,000 cm2, not 0.5 cm2. Statement 2 is incorrect: Each subsequent A size (A1, A2, A3, etc.) has half the area of the previous size. A1 = 1/2 of A0 A2 = 1/2 of A1 = 1/4 of A0 A3 = 1/2 of A2 = 1/8 of A0 A4 = 1/2 of A3 = 1/16 of A0 Therefore, the area of A4 size paper is 1/16th of that of A0, not 1/8th.
polity-and-governance: Consider the following statements: 1. The series of the International Paper Sizes is based on A0 size Whose area is 0.5
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