Question

a man bought aples at 10 for rupees 25 and sold them at rupees 25 per dozen . find his gain or loss percentage

Answer 1

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c.p of 10 apples is Rs. 25
c.p of one apple will be Rs.25/10 or Rs.5/2

s.p of 12 (dozen) apples is Rs.25
s.p of 1 apple will be Rs.25/12

Comparing both,

5/2=30/12

(taking l.c.m of both the denominators)

25/12=25/12

30/12> 25/12

Therefore, the c.p of one apple is greater than than the s.p of one apple.

loss =c.p-s.p
=30/12-25/12
=5/12
loss percent=loss/c.p×100°/°
=5/12÷30/12×100°/°
=10/3°/°

Hope I solved your query :-)

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