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A man sold his bicycle for Rs.405 losing one-tenth of its cost price, find :(i) its cost price;(ii) the loss percent. - Mathematics

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Question

A man sold his bicycle for Rs.405 losing one-tenth of its cost price, find :
(i) its cost price;
(ii) the loss percent.

Sum
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Solution

(i) Let C.P. of the bicycle = Rs. x

∴ Loss = Rs.`"x"/10`

S.P. = C.P. − Loss

`="x"-"x"/10`

But, we are given S.P. = Rs.405

`∴ "x"-"x"/10=405`

`⇒(10"x"-"x")/10=405`

`⇒(9"x")/10=405`

`⇒"x"=405xx10/9`

`⇒"x"=4050/9`

⇒ x = 450

∴ C.P. = Rs.450

(ii) Loss =`"x"/10`

`=450/10` ....(substituting the value of x)

= Rs.45

Loss% =`"Loss"/"C.P."xx100`

`=45/450xx100=4500/450=10%`

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To Find C.P., When S.P. and Gain (Or Loss) Percent Are Given
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Chapter 8: Profit, Loss and Discount - Exercise 8 (A) [Page 90]

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Selina Concise Mathematics [English] Class 8 ICSE
Chapter 8 Profit, Loss and Discount
Exercise 8 (A) | Q 14 | Page 90
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