Question

The list price of a frock is ₹220. A discount of 20% is announced on sales. The sale price (in ₹) is

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Answer 1

Marked price is same as the list price.

20% discount means that on ₹100 (MP), the discount is ₹20.

By unitary method, on ₹1, the discount will be ₹$\frac{20}{100}$

On ₹220, discount = $₹\frac{20}{100}\times 220$ = ₹44

The sale price = (₹220 - ₹44) or ₹176

OR

A discount of 20% means for MP of ₹100, the discount is ₹20.

Hence, the sale price is ₹80.

Using unitary method, when MP is ₹100, sale price is ₹80;

When MP is ₹1, sale price is ₹$\frac{80}{100}$

Hence, when MP is ₹220, sale price = $₹\frac{80}{100}\times 220$ = ₹176.