# Estimation in percentages

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Your bill in a shop is ₹ 577.80 and the shopkeeper gives a discount of 15%. How would you estimate the amount to be paid?

Round off the bill to the nearest tens of ₹ 577.80, i.e., to ₹ .

Find 10% of this, i.e., ₹ 10 100 × 580 = ₹ .

Take half of this, i.e., 1 2 × 58 = ₹

Add the amounts in (ii) and (iii) to get ₹ .

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You could therefore reduce your bill amount by ₹ 87 or by about ₹ 85, which will be ₹

- Try estimating 20% of the same bill amount.
- Try finding 15% of ₹
.

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