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A man buys a machine for ₹2,400 and sells it at a loss of 10%. What is the selling price of the machine?
Question

A man buys a machine for ₹2,400 and sells it at a loss of 10%. What is the selling price of the machine?

A.

₹2,610

B.

₹2,160

C.

₹2,166

D.

₹2,016

Correct option is B

Given:

Cost Price (CP) of the machine = ₹2,400

Loss percentage = 10%

Formula Used:

Loss = Loss percentage100×CP\frac{\text{Loss percentage}}{100} \times \text{CP}​​

Selling Price (SP) = CP - Loss

Solution:

Loss =10100×\frac{10}{100}\times​ ₹2,400

Loss = ₹240

SP = CP - Loss

SP = ₹2,400 - ₹240

SP = ₹2,160

The selling price of the machine is ₹2,160.

Alternate Method: 

-10% = 110-\frac 1{10}

Ratio        10             :                 9

SP = 240010×9\frac {2400}{10}\times 9 = ₹2,160​

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