Question

What is $1000$ milligrams in kg?
$A)0.1kg$
$B)0.01kg$
$C)0.001kg$
$D)0.0001kg$

Answer 1

Hint: First, the units of measurements for mass are known to be expressed in kilograms, grams, milligrams, etc.,
Kilograms are the bigger units and gram is less than kilograms, while milligram is much smaller units.
We convert smaller units to bigger ones by dividing them with the conversion factors.

Complete step by step answer:
We have given that $1000$ milligrams and as we know that there are various measurements like kilogram, hecta, decagram, unit, Deci, Centi, and milli.
These units are in the order of decreasing factors by $10$. So, we can convert the smaller quantities into bigger units by dividing them by a factor of $10$ times the position of the units.
Hence the order is $Kilo > Hecto > Deca > Gram > Deci > Centi > Milli$ and thus while converting the milli into grams we reach backward $3$ times which is ${10^3}$
Hence while converting milli into grams we have $1g = 1000mg$
This means we have the milligram as $1mg = 0.001g$
Multiply both sides with $1000$ then we get $1000mg = 0.001 \times 1000 \Rightarrow 1g$
Also, we know that $1kg = 1000g$
Therefore, we get $1g = 1000mg$
$1g = 000.1Kg$

So, the correct answer is “Option C”.

Note:
While converting a bigger unit into a smaller or smaller into a bigger we will use the multiplication of the division by the unit digit $10$ times the position of the measuring factors. A kilogram is converted to grams by the factor of $1kg = 1000g$. The most commonly used unit of measuring for any quantity is called the SI units of the measurements that are universal. The SI units for the mass id kilogram is kg.
Since we converted milli into kilograms so we get the option $C)0.001kg$