Question

Express 7,000 centimeters in kilometers.

• A. 0.07

Answer 1

The correct option is A 0.07
Centimeter is a unit of length.

Base 10 representation of Metric units is as follows:

Thousands	Hundreds	Tens	Ones	Tenths	Hundredths
Kilo	Hecto	Deca	Meter	Deci	Centi

As we move from right to left we divide by 10 by a certain number of times.

Kilometer is left of centimeter by 5 places.

$\Rightarrow 1\text{Centimeter}=\frac{1}{10\times 10\times 10\times 10\times 10}\text{Kilometer}$

$\Rightarrow 7,000\text{Centimeters}=\frac{7,000}{10\times 10\times 10\times 10\times 10}\text{Kilometer}$

$\Rightarrow 7,000\text{Centimeters}=0.07\text{Kilometer}$