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by25% in the price ofan tem compels a person to buy ie as well as the original price per kg of the item.g of the item less for t240. Find the25000imcreased pric |
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Answer» 1. Let x be the original unit price of the item in rupees/kg 2. $240/x=the original amount or item bought in kg 3. The price of item increases by 25%; therefore, the new price of item is 1.25x 4. $240/1.25x=the amount of item that is bought in kg after the price increase 5. The problem states that after the price increase, the amount of item I buy decreases by 1.5kg. Therefore, the difference between the original amount (step #2) and the new amount (step #4) must be 1.5kg. So, (240/x)-(240/1.25x)=1.5kg 6. Solving the above equation gives x=32. So the original price was 32 rupees/kg. The new price is 32*1.25=40 rupees/kg |
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