A) \[\text{9}:0\text{8}:0\text{4}\]
B) \[\text{9}:0\text{8}:\text{24}\]
C) \[\text{9}:0\text{8}:\text{44}\]
D) None of these
Correct Answer: B
Solution :
Sol. [b] LCM of \[\text{36,42}\] and \[\text{72 }=\text{5}0\text{4}\] |
\[\text{5}0\text{4 sec}=\text{8 min 24 sec}\] |
Hence, at \[\text{9}:0\text{8}:\text{24}\] they will change simultaneously. |
You need to login to perform this action.
You will be redirected in
3 sec