The average price of three items of furniture is Rs. 15000. If their prices are in the ratio 3:5:7, the price of the cheapest item is :
Solution
Correct Answer: Option D
Let their prices be 3x, 5x and 7x.
Then, 3x + 5x + 7x = (15000 \(\times\) 3) or x = 3000.
Cost of cheapest item = 3x = Rs. 9000.
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