The average revenues of 11 consecutive years of a company is Rs 69 lakhs. If the average of first 6 years is Rs 64 lakhs and that of last 6 years is Rs 76 lakhs, what is the revenue for the 6th year?
Total revenues of 11 years of the company = $$69 \times 11$$ = Rs. 759 lakhs
Total revenue of first 6 years = $$64 \times 6$$ = Rs. 384 lakhs
Total revenue of last 6 years = $$76 \times 6$$ = Rs. 456 lakhs
$$\therefore$$ Revenue of 6th year = (384 + 456) - 759 = 840 - 759
= Rs. 81 lakhs
=> Ans - (D)
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