Question

Which of the following is not the same as 2.97 milligrams?

Answer 1

Hi There!!!!!!

Which of the following is not the same as 2.97 milligrams?A)0.297 cg
B)0.00297 g
C) 0.0000297 KG

Answer:0.00297 g

Answer 2

Answer : The (C) 0.0000297 kg is not the same as 2.97 mg.

Explanation :

The conversion used for mass from milligram to centigram is:

$1mg=10^{-1}cg$

The conversion used for mass from milligram to gram is:

$1mg=10^{-3}g$

The conversion used for mass from milligram to kilogram is:

$1mg=10^{-6}kg$

As we are given that the mass 2.97 mg. Now we have to determine the mass in cg, g and kg.

Mass of 'cg' :

$1mg=10^{-1}cg$

$2.97mg=\frac{2.97mg}{1mg}\times 10^{-1}cg=2.97\times 10^{-1}cg=0.297cg$

Mass of 'g' :

$1mg=10^{-3}g$

$2.97mg=\frac{2.97mg}{1mg}\times 10^{-3}g=2.97\times 10^{-3}g=0.00297g$

Mass of 'kg' :

$1mg=10^{-6}kg$

$2.97mg=\frac{2.97mg}{1mg}\times 10^{-6}kg=2.97\times 10^{-6}kg=0.00000297kg$

Hence, from this we conclude that, 0.0000297 kg is not the same as 2.97 mg.