Sun	Mon	Tue	Wed	Thu	Fri	Sat
23	24	25	26	27	28	1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30	31	1	2	3	4	5

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Multiple Choice Questions

An electronic device makes a beep after every 60 sec Another device makes a beep after every 62 sec ...........

Quantitative Aptitude (CSC) LCM, HCF

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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

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Explanation:

L.C.M. of 60 and 62 seconds is 1860 seconds
1860/60 = 31 minutes
They will beep together at 10:31 a.m.
Sometimes questions on red lights blinking comes in exam,

which can be solved in the same way.

Hence, option 3 is the correct answer.

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An electronic device makes a beep after every 60 sec Another device makes a beep after every 62 sec ...........

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

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Explanation:

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