A man sold a radio and a TV set together for Rs. 30,400. thereby making a profit of 25% on the radio and 10% on the TV set. By selling them together for Rs. 30,700, he would have made a 10% profit on the radio and 25% on the TV set. The cost price of the radio is:
1
Rs. 10,000
2
Rs. 12,000
3
Rs. 8,000
4
Rs. 9,000