Question

Convert the following into kilograms :
$400gm$

• A. $0.4kg$
• B. $4kg$
• C. $40kg$
• D. $400kg$

Answer 1

The correct option is A $0.4kg$

We know that

$1$ $kilogram=1000$ $gram$

$1$ $gm=\frac{1}{1000}$ $kg$

Given That, we have to convert $400$ $gm$ to $kg$

$400$ $gm=\frac{1}{1000}\times 400$ $kg$

$=\frac{400}{1000}$ $kg$

$=0.4$ $kg$

So, option $A$ is correct