Rahul borrowed Rs. 830 from Mr. Lal 12% p.a. S.I. for 3 years. He then added some more money to the borrowed sum and lent it to Shobha for the same period at 14% p.a. rate of interest. If Rahul gains Rs. 93.90 in the whole transaction, how much money did he add from his side ??

• A. Rs. 35
• B. Rs. 55
• C. Rs. 80
• D. Rs. 105