a number is increased by 10% and the increased number is decreased by 10% show that the net decrease is 1%
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Answer:see explanation
Step-by-step explanation:
Let the required no.be x.then
Increase in no.=X+x×10/100
=11x/10
By question,11x/10 is decreased by 10% . then
11x/10×90/100
=99x/100
Therefore net decrease in number
=x-99x/100
=X/100
Therefore net decreased%
=X/100×1/X
=1%
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