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4 bells toll together at 9:00 A.M. They toll after 7,,8,11and 12 seconds respectively. How many times will they toll together again in next 3 hours? a)3 b)4 c)5 d)6 Correct answer is (c) will you explain me how?
Most Upvoted Answer
4 bells toll together at 9:00 A.M. They toll after 7,,8,11and 12 secon...
Solution:
To find the time duration between each bell toll, we need to calculate the LCM of the given time intervals in seconds.
LCM(7,8,11,12) = 2^2 x 3 x 7 x 11 = 1848 seconds
Therefore, the bells will toll together again after every 1848 seconds.
Next, we need to find out how many times the bells will toll together in the next 3 hours (i.e., 180 minutes or 10,800 seconds).
Number of times the bells will toll together in the next 3 hours = 10,800/1848 = 5.85
Since the bells cannot toll together 0.85 times, we round off the answer to the nearest integer, which is 6.
Therefore, the correct answer is option (d) 6. The bells will toll together 6 times in the next 3 hours.
To find the time duration between each bell toll, we need to calculate the LCM of the given time intervals in seconds.
LCM(7,8,11,12) = 2^2 x 3 x 7 x 11 = 1848 seconds
Therefore, the bells will toll together again after every 1848 seconds.
Next, we need to find out how many times the bells will toll together in the next 3 hours (i.e., 180 minutes or 10,800 seconds).
Number of times the bells will toll together in the next 3 hours = 10,800/1848 = 5.85
Since the bells cannot toll together 0.85 times, we round off the answer to the nearest integer, which is 6.
Therefore, the correct answer is option (d) 6. The bells will toll together 6 times in the next 3 hours.
Community Answer
4 bells toll together at 9:00 A.M. They toll after 7,,8,11and 12 secon...
Answer is C
all bells ring together at (7,8,11 and 12) seconds.
LCM ( 7,8,11,12) = 1848
3 HOURS = 3600 *3 = 10800 SECONDS
Number of times = 10800/1848 = 5
all bells ring together at (7,8,11 and 12) seconds.
LCM ( 7,8,11,12) = 1848
3 HOURS = 3600 *3 = 10800 SECONDS
Number of times = 10800/1848 = 5
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4 bells toll together at 9:00 A.M. They toll after 7,,8,11and 12 seconds respectively. How many times will they toll together again in next 3 hours? a)3 b)4 c)5 d)6 Correct answer is (c) will you explain me how?
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4 bells toll together at 9:00 A.M. They toll after 7,,8,11and 12 seconds respectively. How many times will they toll together again in next 3 hours? a)3 b)4 c)5 d)6 Correct answer is (c) will you explain me how? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about 4 bells toll together at 9:00 A.M. They toll after 7,,8,11and 12 seconds respectively. How many times will they toll together again in next 3 hours? a)3 b)4 c)5 d)6 Correct answer is (c) will you explain me how? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 4 bells toll together at 9:00 A.M. They toll after 7,,8,11and 12 seconds respectively. How many times will they toll together again in next 3 hours? a)3 b)4 c)5 d)6 Correct answer is (c) will you explain me how?.
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