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Four alarm clocks are set in such a way that they beep at a gap of ev 21,36,45 and 52. At what time will these clocks beep together?O 11:52 a.m.0 2:00 p.mO 3-25 p.mO 3:00 pm7 |
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Answer» 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 Learn More: brainly.in/question/9329941?tbs_match=2 3 alarm make beep after 18 24 36 min they beeped together at 5.30 ... Find LCM and HCF of the FOLLOWING pairs of integers and verify that ... Can 12 and 98 be HCF and LCM of two numbers - Brainly.in |
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