Question

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 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=(2.97mg)/(1mg)* 10^(-1)cg=2.97* 10^(-1)cg=0.297cg`

Mass of 'g' :

`1mg=10^(-3)g`

`2.97mg=(2.97mg)/(1mg)* 10^(-3)g=2.97* 10^(-3)g=0.00297g`

Mass of 'kg' :

`1mg=10^(-6)kg`

`2.97mg=(2.97mg)/(1mg)* 10^(-6)kg=2.97* 10^(-6)kg=0.00000297kg`

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