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Standard IX
Mathematics
Ratio and Proportion
A man makes a...
Question
A man makes a profit of 20% by selling sweets for Rs 960. What will be his profit or loss per cent if he sells them for Rs 840?
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Solution
Let
C
.
P
=
x
S
.
P
=
R
s
960
P
r
o
f
i
t
=
20
%
⇒
120
100
x
=
960
⇒
1.2
x
=
960
⇒
x
=
R
s
800
If
S
.
P
=
R
s
840
P
r
o
f
i
t
=
40
800
×
100
=
5
%
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