One hundred^th of centimetre when written in fractions of kilometres, is equal to :

A. 0.0000001

B. 0.000001

C. 0.0001

D. 0.001

Answer: Option A

Solution(By Examveda Team)

Required fraction :
$$\eqalign{ & = \frac{{\frac{1}{{100}}{\text{ cm}}}}{{1{\text{ km}}}} \cr & = \frac{{\left( {\frac{1}{{100}}} \right){\text{ cm}}}}{{\left( {1000 \times 100} \right){\text{ cm}}}} \cr & = \frac{1}{{100 \times 1000 \times 100}} \cr & = \frac{1}{{10000000}} \cr & = 0.0000001 \cr} $$