Book Maths Puzzle

The area of the bottom of a box is 192 cm2. If its height is 18.5 cm,its volume is ?

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Book Other Question

If a boy takes as much time in running 10 meters, as a car takes in covering 25 meters, find the distance covered by the boy during the time the car coveres 1 Km. If 3x +7x=20 and xy=9,the value of 4x2+9y2 is?