A) 3969
B) 147
C) 63
D) 21
Correct Answer: C
Solution :
\[\left[ \frac{(*)}{21}\times \frac{(*)}{189} \right]=1\] \[\Rightarrow \] \[({{H}^{2}})=21\times 189\] \[\Rightarrow \] \[H=\sqrt{21\times 189}=63\]You need to login to perform this action.
You will be redirected in
3 sec