A chair was sold for rupees 60 at a profit of 20 percent. What was the cost price of the chair.
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Let the c.p. be rs. 100
P= 20%
P = 20× 100( this 100 is for c.p.)/100
P= 20
S.p.= c.p.+p
S.p.= 100+20= 120
Now
From formula
C.p./s.p.×original amount (original s.p.)
100×60/120= 50
C.p.= 50 rs.
P= 20%
P = 20× 100( this 100 is for c.p.)/100
P= 20
S.p.= c.p.+p
S.p.= 100+20= 120
Now
From formula
C.p./s.p.×original amount (original s.p.)
100×60/120= 50
C.p.= 50 rs.
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