Question 1133430
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<pre>
Let C = cost price;

    x= percent above cost price (value under the question).



Then the base equation is

    C*(1 + 0.01x)*0.9 = C*(1 + 0.35).   <<<---=== it is translation of the problem to Math.



Cancel C in both sides to get


    (1 + 0.01x)*0.9 = 1.35.


Then

    1 + 0.01x = {{{1.35/0.9}}} = 1.5  ====>  0.01x = 1.5 - 1 = 0.5  ====>  x = {{{0.5/0.01}}} = {{{5/0.1}}} = 50.


<U>ANSWER</U>.  50%.
</pre>

Solved.