he 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:Options :R9000R15000] R18000R21000
Question
he 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:Options :R9000R15000] R18000R21000
Solution
The average price of the three items is Rs. 15000. This means the total price of all three items is 15000 * 3 = Rs. 45000.
The prices of the items are in the ratio 3:5:7. The sum of the ratios is 3 + 5 + 7 = 15.
The price of the cheapest item (with the ratio 3) can be found by dividing the total price by the sum of the ratios and then multiplying by the ratio of the cheapest item:
(45000 / 15) * 3 = Rs. 9000.
So, the price of the cheapest item is Rs. 9000.
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