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The average price of three items is Rs. 630. If their price is in the ratio 5 :7 :9, then the price of the costliest item is? |
180 150 270 210 |
270 |
ratio is 5 : 7 : 9 5R +7R + 9R = 21R 21R = 630 1R = 30 costliest item = 9R = 9 × 30 = 270 so price of costliest item is Rs.270 |
