Question
A bus takes 55 seconds to travel 550 meters. What is the
speed in km per hour? ÂSolution
Distance = 550m, Time = 55 seconds, Speed = ? Speed = Distance/Time = (550/55) × (18/5) = 36 km/hr
Two cones X and Y of are melted together to form a cylinder of height 48 m. The height of cones X and Y are in the ratio of 3:2 respectively and the rad...
Find the total surface area of a right circular cylinder with radius 7 cm and height 10 cm. (Take π = 22/7)

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A stone is thrown vertically with the velocity which would just carry it to height of 100 feet. Two seconds later another stone is projected vertically ...
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