Question
A car running with a speed of ‘x’ m/sec
makes 9 rounds of a circular field having radius 49 metres, in 12 seconds. Find the time taken by car to cover 600 metres with the speed of (x – 31) m/sec.Solution
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Distance between two stations is 1120 km. Train βAβ takes 6 hours more than train βBβ to cover this distance. If speed of train βBβ is 60 k...