Question

The areas of the two subsequent sizes of drawing sheet are in the ratio ____

(a) 1:5

(b) 1:4

(c) 1:2

(d) 1:10

This question was addressed to me in homework.

I'm obligated to ask this question of Drawing Tools and their Uses topic in portion Drawing Instruments, Sheet Layout & Free-Hand Sketching of Engineering Drawing

Answer 1

Correct option is (c) 1:2

To explain I would say: A successive format size (from A0 to A5) is obtained by halving along the length or doubling along the width. So the areas of the two subsequent sizes are in the ratio 1:2. Likewise in reverse order (from A5 to A0), the ratio will be 2:1.