A tradesman find that by selling a bicycle for rupees 75 which he had brought for rupees x he gained x% find the value of x
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x =(75*100)/(100+x),
x(100+x) =7500,
x^2 + 100x =7500.
putting value for x as to solve it, x =50.
x(100+x) =7500,
x^2 + 100x =7500.
putting value for x as to solve it, x =50.
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