Question

1. Can the following measures be compared using a
ratio?
(1) 6 yellow fishes in an aquarium with 18 fishes.
(in) Sonia's weight and the number of girls in her
class
(iii) Average height of six boys and average time
taken by them to run 100 m.
(iv) Number of matchsticks in a matchbox and
numbers of matchsticks in a carton full of
matchboxes
(v) The length of an ice cube in cm and the
temperature inside the freezer in "C.​

Answer 1

Answer:

i) yes

ii) No

iii)No

iv) yes

v) yes

Answer 2

Answer:

Traditionally the three major classes of materials are metals, polymers, and ceramics. Examples of these are steel, cloth, and pottery. These classes usually have quite different sources, characteristics, and applications.