Math, asked by dastitli700, 1 month ago

Find the Cost price when : S.P. = rs 1955 and gain = 15%

tell me the answer first I mark you as brainliest and tell me the answer step by step ​

Answers

Answered by Theking0123
84

★ Required Answer:-  

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  • The cost price is of ₹ 1700

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\qquad\underline{\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:}

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★ Given:-    

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  • Selling price = Rs. 1955
  • Gain% = 15%

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★ To find:-    

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  • Cost price

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★ Formula Used:-  

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\qquad\dag\:\qquad\:\boxed{\sf{Gain\:\%\:=\:\dfrac{Sp\:-\:Cp}{Cp}\:\times\:100}}\:\qquad\:\dag

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★ Solution:-

\qquad\qquad\underline{\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:}

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\textsc{Let\:the\:cost\:price\:be\:=\:x}

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\qquad\sf{:\implies\:Gain\:\%\:=\:\left(\dfrac{Sp\:-\:Cp}{Cp}\:\right)\:\times\:100}

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\qquad\sf{:\implies\:15\:=\:\left(\:\dfrac{1955\:-\:x}{x}\:\right)\times\:100}

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\qquad\sf{:\implies\:15\:=\:\dfrac{195500\:-\:100\:x}{x}}

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\qquad\sf{:\implies\:15\:x\:=\:195500\:-\:100\:x}

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\qquad\sf{:\implies\:15\:x\:+\:100\:x\:=\:195500}

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\qquad\sf{:\implies\:115\:x\:=\:195500}

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\qquad\sf{:\implies\:x\:=\:\dfrac{195500}{115}}

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\qquad\sf{:\implies\:x\:=\:1700}

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\underline{\underline{\textsc{\:Hence\:the\:cost\:price\:is\:of\:Rs.\:1700}}}

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\qquad\qquad\underline{\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:}

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