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प्रश्न
Find the unknowns x, y and z.
| Name of the item | Marked Price | Selling Price | Discount |
| LED TV | y | ₹ 11970 | 5% |
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उत्तर
LED TV selling price = 11970 discount = 5%, Marked price = y
∴ Selling price = `"Marked price" xx (((100 - "d"%))/100)`
∴ 11970 = `y xx ((100 - 5))/100`
∴ y = `(11970 xx 100)/95`
= 126 × 100
= ₹ 12,600
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