| An electronic device makes a beep after every 60 s. Another device makes a beep after every 62 s. They beeped together at 10 am. The time when they will next make a beep together at the earliest, is |
A) 10: 30 am
B) 10: 31 am
C) 10: 59 am
D) 11 am
Correct Answer: B
Solution :
| LCM of 60 and 62 = 1860 = 31 min |
| \[\therefore \]They will beep together at 10: 31 am. |
You need to login to perform this action.
You will be redirected in
3 sec
