Question

A CD player and TV were bought for Rs.8000 each. The shop keeper made a loss of 5% on CD player and profit of 8% on TV. Find the Net profit or loss percentage on the whole transaction.​

Answer 1

$\bf {The \: price \: at \: which \: a \: buyer \: purchases} \\ \bf { \: an \: article \: is \: called \: the \: cost \: price \: (CP)} \\ \bf {of \: the \: article \: for \: the \: buyer}$$\bf {The \: price \: at \: which \: a \: seller \: sells} \\ \bf{ \: an \: article \: is \: called \: the \: selling \: price \: (SP)} \\ \bf{ \: of \: the \: article \: for \: the \: seller}$

$\bf{When \: the \: selling \: price \: is \: more} \\ \bf{\: than \: the \: cost \: price \: of \: an \: article } \\ \bf{ \: then \: there \: is \: a \: profit \: or \: gain.}$

$\bf{S.P > C.P} \\ \bf{Profit= S.P – C.P} \\ \bf{Profit \%= ( \frac{profit}{C.P})×100} \\ \bf{Profit \: and \: loss \: are \: calculated} \\ \bf{ \: on \: a \: certain \: percent \: of \: the \: C.P.}</p><p>$

$\huge \purple{\mathcal{Solution:}} \\ \bf{Given: }\\ : \implies \bf{Cost \: price \: (CP) \: of \: each \: article=₹800.} \\ : \implies \bf{Profit \: of \: 8 \% \: on \: TV} \\ : \implies \bf{Loss \: of \: 4 \% \: on \: VCR } \\ : \implies \bf{C.P \: of \: TV= ₹8000}$

$\bf{ : \implies \: Profit \: on \: TV = Cost \: price × profit \: \%} \\ \bf{ :\implies \: Profit \: on \: TV = 8 \% \: of \: 8000} \\\bf{ : \implies \: 8000 ×( \frac{8}{100})}=80×8= ₹640$

$\bf{ : \implies \:CP \: of \: VCR= ₹8000}\\ \bf{ : \implies \: Loss \: on \: VCR = Cost \: price × Loss \%} \\ \bf{ : \implies \: Loss \: on \: VCR= 4 \% \: of \: 8000} \\ \bf{ : \implies8000 ×( \frac{4}{100})} \\ \bf{ : \implies 80× 4} \\ \bf{ : \implies ₹320}$

$\bf{Since \: profit \: is \: more \: than \: loss,} \\ \bf{Hence, \: the \: shopkeeper \: gains \: net \: profit} \\ \bf{Net \: Profit= 640 -320= 320}$

$\bf{Now} \\ \bf{ :\implies Total \: cost \: Price \: of \: both \: article= 8000+ 8000 =₹16000 } \\ : \implies \bf{Profit \%= ( \frac{profit}{C.P})×100} \\ : \implies \bf{ \: Profit \: \%} \:\bf{( \frac{320}{16000}) ×100 \: Profit \% } \\ :\implies \bf{ \frac{32}{16}} \\ \red{:}\red \implies \bf \red{Profit \%=2 \%}$

$\bold{ \therefore \: the \: gain \: in \: the \: whole \: transaction = 2\%.}$

Answer 2

Answer:

Sorry dont know maaf kro