Relative speed = (79 – 25) km/hr = 54 km/hr => 54 × (5/18) = 15 m/sec Length of the faster train = 15 × 15 = 225 m
A cylindrical tank has a height of 12 meters and a radius of 7 meters. If 50% of the tank is filled with water, what is the volume of water in the tank ...
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If the numerical value of the circumference of a circle is half the numerical value of its area, then the radius of the circle is:
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