Question

find the ratio of 4 km to 400 m.

Answer 1

1 km =1000m
4 km=4×1000m=4000m

the ratio is
4000:400
by reducing the given ratio we get the ratio as
10:1 is the answer.

Answer 2

Answer:

$The\:ratio\:of\:4\:km\:to\:400\:m\\=10:1$

Step-by-step explanation:

$The\:ratio\:of\:4\:km\:to\:400\:m\\=4\:km : 400\:m$

/* We know that,

1 km = 1000 m */

=$4\times 1000\:m:400\:m$

=$(400\:m\times 10): 400\:m$

/* Divide each term by 400m , we get

= $\frac{400\:m\times 10}{400\:m}:\frac{400\:m}{400\:m}$

= $10:1$

Therefore,

$The\:ratio\:of\:4\:km\:to\:400\:m\\=10:1$

•••♪