A shopkeeper bought a Radio and a USB speaker for Rs. 840. He sold them by making a profit of 15% on Radio and 10% on USB speaker. And, he got a profit of Rs. 102. Find the difference between the cost price of the Radio and USB speaker.

1:

Rs. 110

2:

Rs. 128

3:

Rs. 104

4:

Rs. 180

5:

Rs. 120

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RBI Assistant Prelims 2016

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