Some articles are bought at 2 for rupees15and sold at 3 for rupees 25. Find the gain percentage
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c.p. of 2 article=₹15
c.p. of 1 article=₹15/2=₹7.5
s.p. of 3 article=₹25
s.p. of 1 article=₹25/3=₹8.33
since,s.p.>c.p.,
gain=s.p -c.p.
=8.33-7.5=₹0.83
gain%=gain/c.p.*100
=0.83/7.5*100
=83/750*100
=11.06%
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