A trader marked the price of a car 20% above the cost price and allowed the purchaser 5% discount on the marked price there by gained Rs.8400. Find the cost price of the car?	Choose the correct choice from the following options:	A) 1028	B) 1026	C) 1023	D) 1029	E) 1021
Given that, the question paper consists of five problems. For each problem, one or two or three or none of the choices can be attempted.   Hence, the required number of ways = 45 - 1.   = 210 - 1 = 1024 - 1= 
<gadget id="calculator">1024 - 1</gadget>
<output>1_023</output>
1023   Answer: 1023
<result>C</result>
A trader marked the price of a car 20% above the cost price and allowed the purchaser 5% discount on the marked price there by gained Rs.8400. Find the cost price of the car?