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Byju's Answer
Standard VIII
Mathematics
Finding Increase or Decrease Percentage in Situations
A number is i...
Question
A number is increased by
10
%
an then the increased number is decreased by
10
%
.
Find the net increase or decrease percent.
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Solution
Let the number is increased by
10
%
x
+
10
x
100
=
11
x
10
The number is decreased by
10
%
=
11
x
10
−
11
x
10
×
10
100
=
11
x
10
−
11
x
100
=
99
x
100
Decrease in percentage is
Decrease
=
x
−
99
x
100
=
x
100
So, Decrease %
=
x
100
x
×
100
%
=
1
%
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