SSC Government Jobs Exams Numerical Ability Averages

Average of all prime numbers between 30 to 50

37
37.8
39
39.8

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SSC Other Question

Find the sum of first 30 natural numbers

470
468
465
463
An electronic device makes a beep after every 60 sec. Another device makes a beep after every 62 sec. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest, is

10:28 am
10:30 am
10:31 am
None of above