Q.The list price of a television set is ₹32,000. A dealer is allowed a trade discount of 15%. Find the trade discount and the invoice price.

Invoice price $= 1600\times(1-0.25) = 1200$; net price $= 1200\times(1-0.05) = 1140$. Net price $=$ ₹$1{,}140$.

Marked price $= ₹1{,}600$.

Step 1 — Trade discount ($25\%$). Trade discount is calculated on the marked price:

$\text{Trade discount} = 25\% \text{ of } 1600 = \dfrac{25}{100}\times 1600 = 400$.

Invoice price $= 1600 - 400 = ₹1{,}200$.

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