The average price of 3 items of furniture is Rs 15000 if their prices are in the ratio 3 : 5 : 7 The price of the cheapest items is
Rs18000
Rs9000
Rs15000
Rs21000
A
Rs15000
B
Rs21000
C
Rs18000
D
Rs9000
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Solution
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Total amount paid = =Rs15000×3=Rs45000 Thus, price of cheapest item =33+5+7×45000=Rs9000
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