(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A briefcase was sold at a profit of 10%.If the cost price was 5% less and it was sold for $ 7 more , the gain would have been 20% .Find the cost price of briefcase.

2. The attempt at a solution

I assumed cost price to be x

for 10% gain selling price would be 11x/10

& for 20 % gain selling price would be 6x/5 and profit would be x/5

by the condition 3x/20 +7= x/5 =>where x= 140

But the book's answer is $175

I don't know where i am going wrong and also each time the answers are coming different.

Please help me to rectify where i am going wrong .

thank you.

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# Homework Help: Briefcase problem

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