The average revenues of 7 consecutive years of a company is Rs 75 lakhs. If the average of first 4 years is Rs 70 lakhs and that of last 4 years is Rs 82Â lakhs, what will be the revenue for the 4th year.

• A. Rs 85 lakhs
• B. Rs 83 lakhs
• C. Rs 81 lakhs
• D. Rs 79 lakhs