Math, asked by parulkushwaha6312, 4 hours ago

four alarm clocks are set in such a way that they beep at a gap of every 21 36 45 and 52 seconds

Answers

Answered by karinadeka
0

Answer:

60 minutes

The clock will ring after 60 minutes.

Step-by-step explanation:

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Answered by amitnrw
2

Given : Four alarm clocks are set in such a way that they beep at a gap of  21,36,45 and 52 seconds

clock beeped together at 10 : 30  AM

To Find : At what time will these clocks beep together

Solution:

21 = 2 * 7

36 = 2 * 2 * 3 * 3

45 = 3 * 3 * 5

52 = 2 * 2 * 13

LCM = 2 * 2 * 3 * 3 * 5 * 7 *  13  

= 16,380  seconds

= 4 hrs 55 mins

Hence clocks will beep  every 4 hrs 55 mins together

clock beeped together at 10 : 30  AM

=> 10 : 30 + 4 : 55

= 3 : 25 pm

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