Exam Maths Puzzle Numerical Ability

Two rubber balls A and B are dropped simultaneously to the ground from heights of 8 meters and 6 meters respectively. A loses 45 cm and B loses 10 cm in each bounce. what is the difference between the peak position(in meters) from the ground of A and B aftertheir 4th and 6th bounce respectively ?

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Exam Other Question

A chiled makes three equilateral triangle. four squares and five regular pentagons each having a 20 cm long side, from length of wire. What would have been the length of the side of each regular decagon (a ten sided polygon) in cm if the chile had decided to use double the above length of wire to make ten such decagons ? A sold a tap recorder to B at a profit of 25% on the sale price B sold it to C at a profit of 20% on the sale price. Subsequently C sold it to D for Rs 5.000 at a loss of 25% on the sale price. What was the cost price to A(in Rs.) ?