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posted by Rebecca on Monday, April 19, 2010 at 9:21pm.

20% of a number is 8 ... fine the number 20 divided by 100 is 5, 8 divided by 5 is 1.6 is the answer 1.6/8 ?

8/.2 = 80/2 = 40 or 20% = 1/5 so 5*8 = 40

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