Question

radius of the earth is 6400km and that of mars is 430000m whose radius is bigger and by how much

Answer 1

Radius of Earth (R1) =6400km=6400×10^m=6400000m
Radius of Mars (R2)= 4300000m
R1/R2=640000/4300000=64/43=1.488 Therefore R1:R2=1.488 => R1=1.4R2 i.e Radius of Earth is 1.4 times radius of Mars

Answer 2

Radius of earth = 6400km =(6400 x 1000)m =6400000.
So that Radius of Mars = 430000m
So Bigger = Radius of earth-Radius of Mars
= (6400000 - 430000)m
= 5970000 m.

Hope this will help you..