Question

a man bought a TV at rs 2,000. Now, he sell her tv 10% less and after sometime he sell her tv 10% more. Did he gain or lose and how?
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Answer 1

Answer:

profit she get is correct

Answer 2

$\huge \overline{ \underline{ \tt \gray {Solution}}}$

$\tt \red{cost \: price \: of \: a \: T.V. set = rs.2000}$

$\tt \green{profit = 10\%}$

$\tt \blue{selling \: price = [100 + \frac{P}{100} ] \times c.p. }$

$\tt \pink{ \longrightarrow [100 + \frac{10}{100} ] \times 2000 }$

$\tt \purple{ \longrightarrow [ \frac{110}{1 \cancel{00}} ] \times 20 \cancel{00 }}$

$\tt \orange{ \longrightarrow 110 \times 20 }$

$\tt \blue{ \longrightarrow rs.2200 }$

$\huge \mathbb{ NOW, }$

$\tt \green{loss = 10\%}$

$\tt \blue{selling \: price = [100 - \frac{L}{100} ] \times c.p. }$

$\tt \pink{ \longrightarrow [100 - \frac{10}{100} ] \times 2000 }$

$\tt \purple{ \longrightarrow [ \frac{90}{1 \cancel{00}} ] \times 20 \cancel{00 }}$

$\tt \orange{ \longrightarrow 90 \times 20 }$

$\tt \blue{ \longrightarrow rs.1800 }$

$\tt \gray{Total \: Cost \: Price = 2000 + 2000 = rs.4000}$

$\tt \green{Total \: Selling \: Price = 2200 + 1800 = rs.4000}$

$\tt \red{ Here, C.P.= S.P.}$

$\pink{ \boxed{ \tt Therefore, it \: is \: neither \: loss \: nor \: profit}}$