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Question

Q. यदि 20 कलम का लागत मूल्य 15 कलम के विक्रय मूल्य के बराबर है, तो % लाभ कितना है?

A

25%
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B

33.33%
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C

33.67%
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D

75%
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Solution

The correct option is B
33.33%
व्याख्याः

विधि 1:
15 पेनों को बेचने पर 5 पेन मिलते है।
लाभ प्रतिशत =515×100=33.33 प्रतिशत

विधि 2:
माना कि एक पेन का क्र.मू. x रू. है।
अब, 15 पेन का वि.मू. =20 पेन का लागत मूल्य =20x
15 पेन का कुल लागत मूल्य =15x
इस प्रकार, लाभ %=[(SPCP)CP]×100=[(20x15x)15x]×100=1003=33.33 प्रतिशत


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