Question

during a sale a shop keeper reduced the prices of all his goods by 15%. Calculate the original selling price of a calculator for $23.80 during the sale

Answer 1

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i ) Selling price = Original Price × ( 100 - d ) / 100

d = reduced price percentage

Rearrange the formula

ii ) Original Price = ( Selling Price × 100 )/ ( 100 - d )

According to the given question ,

Selling Price = S . P = Rs 20.40

d = 15%

Let Original Price = Rs x

Therefore,

x = ( S.P × 100 ) / ( 100 - d )

x = ( 20.40 × 100 ) / ( 100 - 15 )

x = ( 2040 / 85 )

x = 24

Required Original Price = x = Rs 24

Answer 2

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i ) Selling price = Original Price × ( 100 - d ) / 100

d = reduced price percentage

Rearrange the formula

ii ) Original Price = ( Selling Price × 100 )/ ( 100 - d )

According to the given question ,

Selling Price = S . P = Rs 20.40

d = 15%

Let Original Price = Rs x

Therefore,

x = ( S.P × 100 ) / ( 100 - d )

x = ( 20.40 × 100 ) / ( 100 - 15 )

x = ( 2040 / 85 )

x = 24

Required Original Price = x = Rs 24

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