Question

if the selling price of a book is 3/5 of its cost price find the loss percent
​

Answer 1

Hello mate..

$\huge \underline ✎ \underline \mathfrak \red{solution \: : }$

GIVEN:

• Selling price of the book (SP) = ⅗x
• Cost price of the book (CP) = x

TO FIND:

The loss percent (ℓ%) of the book.

SOLUTION:

$\bold ☞\green{loss = CP - SP} \\ \bold☞ \green{loss \: percent = \huge{[} \small\frac{loss}{CP} \times 100 \huge] \small\%}$

Here,

SP = ⅗ × CP

$\bold { \frac{ SP}{CP } = \frac{3}{5} } \\ \bold{which \: means, \: SP = 3 \: and \: CP = 5}$

$\bold{⇒ Loss = 5 - 3 } \\ \bold{⇒ Loss = 2}$

Then,

$\bold{loss \: percent = \huge{[} \small\frac{2}{5} \times 100 \huge] \small\%} \\ \bold{⇒ \huge{[} \small2\times 20 \huge] \small\%} \\ \bold{⇒40\%}$

∴ The loss percent of the book = 40%.

⠀

HOPE THIS HELPS YOU..

Answer 2

Answer:

SOLUTION:

\begin{gathered} \bold ☞\green{loss = CP - SP} \\ \bold☞ \green{loss \: percent = \huge{[} \small\frac{loss}{CP} \times 100 \huge] \small\%}\end{gathered}

☞loss=CP−SP

☞losspercent=[

CP

loss

×100]%

Here,

SP = ⅗ × CP

\begin{gathered} \bold { \frac{ SP}{CP } = \frac{3}{5} } \\ \bold{which \: means, \: SP = 3 \: and \: CP = 5}\end{gathered}

CP

SP

=

5

3

whichmeans,SP=3andCP=5

\begin{gathered} \bold{⇒ Loss = 5 - 3 } \\ \bold{⇒ Loss = 2}\end{gathered}

⇒Loss=5−3

⇒Loss=2

Then,

\begin{gathered}\bold{loss \: percent = \huge{[} \small\frac{2}{5} \times 100 \huge] \small\%} \\ \bold{⇒ \huge{[} \small2\times 20 \huge] \small\%} \\ \bold{⇒40\%}\end{gathered}

losspercent=[

5

2

×100]%

⇒[2×20]%

⇒40%

∴ The loss percent of the book = 40%.

Step-by-step explanation:

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