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If a light flashes every 6 seconds, how many times will it
flash in ¾ of an
hour?
- 7 Answers
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Answer / chandan
3/4hr =3600*3/4=2700sec.
no of times flashes= 2700/6=450times
| Is This Answer Correct ? | 138 Yes | 39 No |
Answer / lakshmi
451 times.
Explanation: There are 60 minutes in an hour.
In ¾ of an hour there are (60 * ¾) minutes = 45 minutes.
In ¾ of an hour there are (60 * 45) seconds = 2700 seconds.
Light flashed for every 6 seconds.
In 2700 seconds 2700/6 = 450 times.
The count start after the first flash, the light will
flashes 451 times in ¾ of an hour.
| Is This Answer Correct ? | 80 Yes | 17 No |
Answer / chandan singh
Answer will be:451 times.
min in an hour=60
min in 3/4of hour=60*3/4=45 min
1 min=60 sec.
45 min =60*45=2700 sec.
in first 6 sec. we see that light flashes 2 times and in 12 sec. it flashes 3 times respectively
so total no. of flashes = (2700/6)+1=451
| Is This Answer Correct ? | 29 Yes | 7 No |
Answer / papun_satyajit
3/4 0f 1Hr = 45 minutes.
Light flashes in 1 minute = 60/6 = 10
So, light flash in 3/4 of an Hour = 10*45 = 450
ANS: 450
| Is This Answer Correct ? | 25 Yes | 20 No |
Answer / k
6sec= 1 time
60 sec(1 min)=10times
3/4 hour(45 mins)=45X10=450 times
| Is This Answer Correct ? | 10 Yes | 13 No |
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