Consider the following statements: 1. The series of the International Paper Sizes is based on A0 size whose area is 0.5m2 (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?

Both statements are incorrect. ISO A-series paper formats define A0 as having an area of one square metre (1 m²), not 0.5 m². The series is generated by repeatedly halving the area of the previous size (each An+1 is half the area of An) [1]. A4 is reached by cutting A0 in half four times (A0 → A1 → A2 → A3 → A4), so A4’s area is (1/2)^4 = 1/16 of A0, not 1/8. Therefore statement 1 is false and statement 2 is false, making “Neither 1 nor 2” the correct choice.

Sources

1. [1] https://www.papersizes.org/a-paper-sizes.htm