SSC CHSl 19 Jan 2017 Evening Shift Question 93

Question 93

The average revenues of 13 consecutive years of a company is Rs 70 lakhs. If the average of first 7 years is Rs 65 lakhs and that of last 7 years is Rs 77 lakhs, find the revenue for the 7th year.

Solution

Total revenues of 13 years of the company = $$70 \times 13$$ = Rs. 910 lakhs

Total revenue of first 7 years = $$65 \times 7$$ = Rs. 455 lakhs

Total revenue of last 7 years = $$77 \times 7$$ = Rs. 539 lakhs

$$\therefore$$ Revenue of 7th year = (455 + 539) - 910 = 994 - 910

= Rs. 84 lakhs

=> Ans - (B)



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