quantitative skills...
Two clocks begin to strike 8 together. one of them finises in 14 seconds and the other in 10.5 seconds. What is the interval between their fifth strokes?
1) 1 second
2) 2 seconds
3) 2.5 seconds
4) 1.33 seconds
1) 1 second
2) 2 seconds
3) 2.5 seconds
4) 1.33 seconds
Replies
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Tejashree KatdareNumber of strokes = 8
Intervals = 7
Time elapsed between intervals for first clock = 14/7 = 2 seconds
Time elapsed between intervals for second clock = 10.5/7 = 1.5 seconds
Now for 5 strokes there will be 4 intervals.
Therefore intervals between strokes = (2*4-1.5*4) = 2 seconds.
Ans is 2
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