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A dealer sold a camera for ₹1080 gaining 1by 8 of it's cost Price. Find cost price and gain percent earned by dealer

Posted by Karishma Kumari 6 years, 2 months ago

CBSE > Class 08 > Mathematics

1 answers

Sia ? 6 years, 2 months ago

Sp =1080
cp = x
gain = {tex}\frac18\times cp{/tex}
1080 - x ={tex}\frac x8{/tex}
{tex}\frac x8{/tex} + x = 1080
x+{tex}\frac {8x}{8}{/tex} = 1080
{tex}\frac {9x}{8}{/tex} = 1080
x = {tex}8x \frac{1080}{9}{/tex}
x = 8 {tex}\times{/tex} 120
x = 960rs
Cp = 960rs
gain = {tex}\frac{1}{8}{/tex}× 960
gain = 120rs
gain% = {tex}\frac{gain}{cp}\times100{/tex}
={tex}\frac{120}{960}\times100{/tex}
{tex}\frac18\times 100{/tex}
12.5% is gain percent

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CBSE > Class 08 > Mathematics