Question

20) If the cost of 1 litre of medicine is Rs. 480.48,find the cost 1 point
of 500 mL.​

Answer 1

Answer:

Simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work. They are the simplest mechanisms known that can use leverage (or mechanical advantage) to increase force. The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw.