When Raman sold a radio for Rs 600,40% loss occurred.Find the S.P if he wants a gain of 20%.

When 300% of a number is 120 ,find 150% of that number

When 40 is added to 20% of a  number,same number is obtained.Find the number

If 40% of a  number is 200,find the number

The cost of a machine is 10000.The value decreases by 20%  every year,what will the cost of the machine after 2 years.

The cost of a machine is 10000.The value decreases by 20%  every year,what will the cost of the machine after 2 years.