Question 326767
find a number which is as much greater than 21 as it is less than 71.
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Let the number be "x": 
Find the value mid-way between 21 and 71.
21 + (50/2) = 21+25 = 46
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46-21 = 25
71-46 = 25
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Ans: 46
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Cheers,
Stan H.