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By how much above the cost price should
an article be marked up for sale so that after
allowing two successive discounts of 20%
and 6.25% on it, a net gain of 20% is made
on the cost?
Area=2(25+12)*10+25*12=1040
Each day==200/5+250/2==165
Tw==1040/165==6 10/33
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