Question

A number is increased by 10% and then decreased by 10% . Find net increase or decrease per cent.​

Answer 1

Answer:

So, net decrease is 1 percent

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

let the original number be 100 increase 10%

=100+10% of 100

$= 100 + \frac{10} {\cancel{100} } \times \cancel{ 100}$

=110

decrease 10%=110-10% of 110

$= 110 - \frac{10}{100} \times 110$

=110-11

=99

decrease %=

$\frac{100 - 99} {\cancel{100} } \times \cancel{100}$

=1%

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