Question

What is 1000 milligram in kg?
A.0.1 kg
B.0.01 kg
C.0.001 kg
D.0.0001 kg

Answer 1

Hint: To determine how many milligrams make up one kilogram, we must first determine how many milligrams make up one gram. Then we'd figure out how many grams there are in a kilogram. After determining the number of milligrams in a gram and the number of grams in a kilogram, we multiply these two figures to obtain the number of milligrams in a kilogram.

Complete step by step solution:
Before we begin, let us first review the definitions of milligram, gramme, and kilogram. The mass of an object is measured in milligrams, grammes, and kilograms (there are many such units of measurement of mass, but for now we will consider only these three). Despite the fact that all of these units are used to measure mass, they differ in the amount of mass they represent. In general, a kilogram is used to signify higher quantities, while milligram is used to denote lesser masses. Returning to the original question, we have,
$$1\text{gram}=1000\text{milligram}---(1)$$
From the above equation (1) we get the value of 1 milligram
That is
$$1\text{milligram}=0.001\text{gram}--(2)$$
But we have to find the value for 1000 milligram that means we multiply by 1000 on both sides of the above equation (2) we get:
$$1000\text{milligram}=0.001\times 1000\text{gram}$$
After simplifying this we get:
$$1000\text{milligram}=1\text{gram}--(3)$$
But we want it in the form of kilograms for that we need to use the conversion of kilogram that is
$$\text{1}\text{kilogram}=1000\text{gram}$$
From this equation we can find the value of 1 gram that is
$$\text{1}\text{gram}=0.001\text{kilogram}--(4)$$
Substitute this value of equation (4) on equation (3) we get:
$$1000\text{milligram}=0.001\text{kilogram}$$
Hence, for 1000 milligram there are 0.001 kilogram.
So, the correct answer is “Option C”.

Note: It is often helpful to recall the basic conversion formulas when solving questions concerning the conversion of units of mass from one unit to another. Although one may not know the conversion from kilogram to milligram directly in this case, one can conduct the conversion from kilogram to milligram efficiently if one knows the basic conversions such as kilogram to grams and then grams to milligram.