Question
Anshul lives on 15th floor and Keshav lives on 55th
floor. Anshul goes up at a rate of 36 floors per minute and Keshav comes down at a rate of 44 floors per minute. At which floor they will meet?ÂSolution
Total floors between Anshul and Keshav = 55 – 15 = 40 floors Relative speed = 36 + 44 = 80 floor/min Time taken by them to meet = total floors/relative speed = 40/80 = 1/2 min Anshul travels in 1/2 min = 1/2 x 36 = 18 floors Floor at which Anshul and Keshav will meet = 15 + 18 = 33rd floor
What should come next in the following number series?
5 6 7 5 5 6 6 7 7 5 5 5 6 6 6 7 7 7 5 5 5 5
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