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Maths Puzzle
Numerical Ability
Area and Volume
Radius of earth is 6400 km. If mass of earth remains conserved and radius of earth would be 1cm and then its density would be
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Book Other Question
A tap can fill a tank in 48 minutes another tap can empty it in 2 hours. if both the taps are opened at 11.40 am. then at what time will the tank be filled?
If the area of a square is 20000. Find its perimeter.