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One light light flashes 3 times in a minute and an another
light flases 3 times in 2 minutes.Find the duration after
which both lights will flash same number of times.
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Answer / mkrao
question has some doubt. number of flash will be same. it
will not be change. Both will flash together after 40sec
| Is This Answer Correct ? | 28 Yes | 2 No |
Answer / aditi
In former case it takes 20seconds for one flash, and in the latter one it takes 40seconds.
So they will flash together at 40th second.
| Is This Answer Correct ? | 20 Yes | 3 No |
Answer / alpha_enterprises03
1 light 60 sec = 3 time time cycle is 20 sec
2 light 120 sec = 3 time time cycle is 40 sec
in second flash of first light will co inside with first
flash of second light
| Is This Answer Correct ? | 9 Yes | 1 No |
Answer / bharath.p
The first light flashes at
00:20,00:40,01:00,01:20,01:40,02:00........
The second light flashes at
00:40,01:20,02:00.........
(These all are co-inside with first
*The second light flashes always with first .
*2nd light flashes = 1/2(1st light flashes).
*total no of times both flashes at same time = total no of
time second light flashes
therefore both flashes same at 00:40,01:20,02:00.........
(equal to 2nd light flashes)
| Is This Answer Correct ? | 7 Yes | 1 No |
Answer / nitasha sharma
1 min
expln:
first light flashes after 1 min then it will flash after 1
more min(total:2min). second light flashes after 2 min which
is the next one min of first light.
| Is This Answer Correct ? | 1 Yes | 12 No |
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