##### Jane bought a bicycle and sold it for 30% more than she paid for it.

label Mathematics
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Jane bought a bicycle and sold it for 30% more than she paid for it. She sold it for \$104. How much did she pay for it?

I'm reviewing for an exam I'm taking this evening and I'm not sure how to do this one.

Aug 6th, 2015

Let the buying price be x.

selling price was 30% more than buying price = 130% x

130%x=\$104

x=104 /130%

x= 104*100/130 = \$ 80

buying price is therefore \$ 80

Aug 6th, 2015

Aug 6th, 2015

This is because selling price =b.p + 30% bp

s.p =100% b.p +30% b.p

=130% b.p

Aug 6th, 2015

alternatively you can use the formulas

profit =s.p -b.p

% profit =((s.p -b.p)/b.p) * 100%

30 % = ((104 -b.p)/b.p))*100%

0.3 = (104 -b.p)/b.p)

0.3 b.p. =104- b.p.

1.3 b.p. =104

b.p = 104/1.3 = 80

Aug 6th, 2015

Thank you!

Aug 6th, 2015

welcome. You can ask me questions directly via www.studypool.com?aid=mickeygabz

Aug 6th, 2015

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Oct 20th, 2017
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