a businessman purchased 30 tv sets in rs. 300000, if the average cost of 15 tv

Question

a businessman purchased 30 tv sets in rs. 300000, if the average cost of 15 tv sets is rs. 9000 then find out the average cost of remaining tv sets.

Options:

A . Rs. 5500

B . Rs. 7000

C . Rs. 9000

D . Rs. 11000

Answer: Option D
Explanation :

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