a number is increased by 20% and then it is decreased by 10%. find the net increase or decrease per cent.
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Let's take 100 as an example
20% of 100 is 20 . 100+20=120
10% of 120 is 12. 120-12=108
Hence 8% net increase.
20% of 100 is 20 . 100+20=120
10% of 120 is 12. 120-12=108
Hence 8% net increase.
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