Question

A man bought an article for Rs $x$ and sold is for Rs $16$ .If his loss percent was $x$ per cent ,find the cost price of the article.

• A. $30$
• B. $20$
• C. $18$
• D. None of the above

Answer 1

Answer: (B)

$20$

Lets assume the cost price of the article=$x$

So, Loss %=$x$

SP=$16$ Rs

So, Loss %= $(CP-SP/CP)100$

$x=(x-\frac{16}{x})\times 100$

$x^2=-1600+100x$

$X^2-80x-20x+1600=0$

$(x-80)(x-20)=0$

$x=80or20$

As per question the cost price of the article should be $20$.