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Volume of Cylinder and Sphere
Question: Two balls, one 2 inch radius and the other 3 inch radius, are placed in a cylindrical jar 9 inch in diameter, as shown in Figure. Find the volume of water necessary to cover them? Solution Given: Diameter of the cylinder=9 inch Height of the cylinder =? Radius of the sphere(the two balls) r1=2
DIVISION TRICKS- Simple Time Saving Math Trick
This video explains the simple shortcut method to divide the numbers if the divisor ends with 9. It shows several examples which would be helpful to understand. This Division Trick is simple and easy to follow. Shortcut Method: To divide the numbers whose divisor ends with 9, 1. Round the divisor to the nearest 10
Square Root Aptitude Questions – Learn the Trick and Solve the SQUARE ROOT questions in few seconds.
This video shows the simple shortcut method to find the square root of any digit numbers. It helps to solve aptitude questions in few seconds.