Question

A watch is sold is for rs. 425 at a loss of 15percent.find the CP of the watch
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Answer 1

Answer:

SP = 425

Loss % = 15 %

Let the CP be x

A/q

x - 15% of x = 425

=> x - 15x/100 = 425

=> ( 100x - 15x )/ 100 = 425

=> 85x / 100 = 425

=> 85x = 425 × 100

=> x = ( 425 × 100 )/ 85

= 5 × 100

= 500

Hence , the CP of watch is ₹ 500 .

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Answer 2

Answer:

Sp = 425

Loss per = 15%

To find cp if sp and loss percent is given -

Cp = 100 × sp / 100 - loss percent

= 100 × 425 / 100 - 15

= 42500 / 85

= 500

So, cost price is 500 rs.

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