16. Four different devices beep after every half hour, 60 min, 1 and half hours, and 135 min respectively. All
the devices beeped together at 12 noon. They will beep together again at:
A] 12 midnight
B] 6 AM
C] 9 PM
D] 7:30 AM
Answers
Answered by
0
Answer:
all of the above is the correct answers
Answered by
1
Answer:
A = 30 min
B = 60 min
C = 90 min
D = 105 min
LCM of ABCD = 1260 min or 21 hours
Required Time = 12 Noon + 21 => 9AM
Step-by-step explanation:
Please mark my answer as brainliest
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