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Standard VIII
Mathematics
Question
The price of an article is increased by
20
%
and then decreased by
10
%
. Then find effect on price.
Decreased by
8
%
Increased by
8
%
Decreased by
20
%
Increased by
20
%
A
Decreased by
8
%
B
Increased by
8
%
C
Increased by
20
%
D
Decreased by
20
%
Open in App
Solution
Verified by Toppr
The correct option is
B
Increased by
8
%
L
e
t
i
n
i
t
i
a
l
p
r
i
c
e
b
e
R
s
.100
I
n
c
r
e
a
s
e
i
n
p
r
i
c
e
=
20
%
∴
N
e
w
p
r
i
c
e
=
100
(
1
+
20
100
)
=
120
Now the price is decreased by
10
%
∴
N
e
w
p
r
i
c
e
=
120
(
1
−
10
100
)
=
108
∴
f
i
n
a
l
p
r
i
c
e
=
108
i
n
i
t
i
a
l
p
r
i
c
e
=
100
∴
I
n
c
r
e
a
s
e
i
n
p
r
i
c
e
=
(
108
−
100
)
=
R
s
.8
%
i
n
c
r
e
a
s
e
=
i
n
c
r
e
a
s
e
(
i
n
R
s
)
i
n
i
t
i
a
l
p
r
i
c
e
×
100
=
8
100
×
100
%
=
8
%
Hence, there is
8
%
increase in price
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