the cost of 15 articles is equal to sell price of 12 articles. the gain % is?
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Let the C.P of each pen be Rs.x
then,
C.P of 12 pens=Rs12
S.P of 12 pens =C.P of 15 pens = Rs15
now,
gain=S.P-C.P
=Rs (15-12)=Rs 3
gain%=gain/CP*100 = 3/12*100 = 25%
then,
C.P of 12 pens=Rs12
S.P of 12 pens =C.P of 15 pens = Rs15
now,
gain=S.P-C.P
=Rs (15-12)=Rs 3
gain%=gain/CP*100 = 3/12*100 = 25%
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