A businessman purchased 30 TV sets in ₹ 300000, If the average cost of 15 TV sets is ₹ 9000 then find out the average cost of remaining TV sets.

₹20000
₹ 12000
₹ 11000
₹10000

Correct Answer: ₹ 11000

Explanation:

Total cost of 30 TV sets = ₹ 300000
Total cost of 15 TV sets = 9000 x 15 = 135000
Total cost of remaining 15 TV sets = 300000 - 135000 = 165000
∴ Average cost of remaining TV sets = 165000/15 = ₹ 11000

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