Question

by selling a laptop for rs23,000 a dealer earns a profit of 15%.Find its cost price.​

Answer 1

Step-by-step explanation:

hope it help youuuuuuuuuu

Answer 2

$\small\underline{\frak{\pmb{ \red{ Given : }}}}$

• Selling price of the laptop = Rs. 23,000
• Profit made by him = 15 %

$\small\underline{\frak{\pmb{ \red{ To \: Find : }}}}$

• Cost price of the laptop

$\small\underline{\frak{\pmb{ \red{ Solution }}}}$

$\large {\boxed {\sf {\orange {Cost Price = \dfrac { SP × 100 }{ 100 + Profit \%}}}}}$

Cost price:-

$\sf \implies { Cost price = \dfrac{ (23,000 \times 100) }{ 100 + 15 \%}}$

$\sf \implies { Cost price = \dfrac{ 23,00,000 }{115}}$

$\sf \implies { Cost price = 20,000}$

Cost price of the laptop is Rs. 20,000

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$\small\underline{\frak{\pmb{ \red{Some~ related ~formulas : }}}}$

$\begin{gathered} \begin{gathered}\small\boxed{\begin{array}{cc}\large\sf\pink \: {\underline{More \: Formulae}} \\ \\ \bigstar \: \sf{Gain = S.P - C.P} \\ \\ \bigstar \:\sf{Loss = C.P - S.P} \\ \\ \bigstar \: \sf{Gain \: \% = \Bigg( \dfrac{Gain}{C.P} \times 100 \Bigg)\%} \\ \\ \bigstar \: \sf{loss \: \% = \Bigg( \dfrac{loss}{C.P} \times 100 \Bigg)\%} \\ \\ \bigstar \: \sf{C.P =\dfrac{100}{100+Gain\%} \times S.P} \\ \\\bigstar \: \sf{S.P = \dfrac{100-loss\%}{100} \times C.P} \\ \\ \bigstar \: \sf{C.P =\dfrac{100}{100-loss\%} \times S.P}\end{array}}\end{gathered}\end{gathered} </p><p>$