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john walks on an escalator at a rate of 5 steps per second and reaches the other end in 10 secs. while coming back , walking at the same speed he reaches the starting point in 40seconds . what is the number of steps on the escalator?

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TCS Other Question

sandra while walking diametrically across a semicircular playground, takes 3mins less than if she had kept walking around the circular path from A to B. if she walks 60 metres a minute , what is the diameter of the playground? a tiger is 50 of its own leaps behind a deer, the tiger takes 5 leaps per minute to the deer's 4. if the tiger and the deer cover 8m and 5m per leap respectively, what distance will the tiger have to run before it catches the deer?