The average revenues of 11 consecutive years of a company is Rs 77 lakhs. If the average of first 6 years is Rs 72 lakhs and that of last 6 years is Rs 84 lakhs, What is the revenue for the Sixth year.
Total revenues of 11 years of the company = $$77 \times 11$$ = Rs. 847 lakhs
Total revenue of first 6 years = $$72 \times 6$$ = Rs. 432 lakhs
Total revenue of last 6 years = $$84 \times 6$$ = Rs. 504 lakhs
$$\therefore$$ Revenue of 6th year = (432 + 504) - 847 = 936 - 847
= Rs. 89 lakhs
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