A) 1 : 9
B) 2 : 9
C) 27 : 1
D) 9 : 1
Correct Answer: C
Solution :
\[B\propto \frac{1}{{{x}^{3}}}\Rightarrow \frac{{{B}_{1}}}{{{B}_{2}}}={{\left( \frac{{{x}_{2}}}{{{x}_{1}}} \right)}^{3}}={{\left( \frac{3x}{x} \right)}^{3}}=\frac{27}{1}\]You need to login to perform this action.
You will be redirected in
3 sec