Shortcut Methods
JEE MAIN
1. Absolute Error = Percentage Error/ 100% * Measured Value
2. Surface Area of a Cylinder = 2 * Pi * Radius * (Radius + Height)
3. Weight of a body on the moon = Weight of a body on the Earth * (Acceleration due to gravity on the Moon/ Acceleration due to gravity on the Earth)
CBSE BOARD EXAMS
1. Percentage Error = [(Measured Value - Actual Value) / Actual Value] * 100%
2. Volume of a Cuboid = Length * Width * Height
3. Average Speed = Total distance travelled / Total time taken
