A shopkeeper marked the price of a radio as Rs. 5000. He sold it allowing a discount of 10% and made a profit Rs. 500. Find the cost prise of the radio.​

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x