Question

Find the Cost price when : S.P. = rs 1500 and gain = 20% tell me the answer first I mark you as brainliest and tell me the answer step by step and send me the photo ​ ​

Answer 1

Answer:

Given :

Selling price (SP) = Rs.1500

Gain% = 20%

To Find :

Cost price (CP)

Solution :

The relation between Cost price (CP) , Selling price (SP) & Gain% is ,

\begin{gathered} \\ {\boxed{\bf{Gain\% = \frac{( SP-CP )}{CP} \times 100 }}} \\ \end{gathered}

Gain%=

CP

(SP−CP)

×100

We have ,

SP = Rs.1500

Gain% = 20%

Substituting the values in the formula ,

\begin{gathered} \\ : \implies \sf 20 = \dfrac{(1500 -CP )}{CP} \times 100 \\ \end{gathered}

:⟹20=

CP

(1500−CP)

×100

\begin{gathered} \\ : \implies \sf 20CP= (1500 - CP)100 \\ \end{gathered}

:⟹20CP=(1500−CP)100

\begin{gathered} \\ : \implies \sf 20CP = 1500(100) - 100CP\\ \end{gathered}

:⟹20CP=1500(100)−100CP

\begin{gathered} \\ : \implies \sf \: 20CP + 100CP = 1500 \times 100 \\ \end{gathered}

:⟹20CP+100CP=1500×100

\begin{gathered} \\ : \implies \sf \: 120CP = 1500 \times 100 \\ \end{gathered}

:⟹120CP=1500×100

\begin{gathered} \\ : \implies \sf \:CP = \frac{1500 \times 100}{120} \\ \end{gathered}

:⟹CP=

120

1500×100

\begin{gathered} \\ : \implies \boxed{\bf{{ CP= \: Rs.1250}}} \: \dag \\ \\\end{gathered}

:⟹

CP=Rs.1250

†

∴ The cost price (CP) is Rs.1250

Answer 2

cp Rs 1250

Thanks ......................