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If 1,5,8=76 2,7,3=25 3,4,9=89 and 4,5,7=69 then 5,3,8=??

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If 1,5,8=76 2,7,3=25 3,4,9=89 and 4,5,7=69 then 5,3,8=??
posted Apr 17, 2017 by Yodcp$moj

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1 Answer

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Answer = 82

Formula is (3rd Number * 10 + 1st number) - 2ndNumber

1,5,8 = (8 * 10 + 1) - 5 = 81 - 5 = 76
2,7,3 = (3 * 10 + 2) - 7 = 32 - 7 = 25
3,4,9 = (9 * 10 + 3) - 4 = 93 - 4 = 89
4,5,7 = (7 * 10 + 4) - 5 = 74 - 5 = 69

therefore

5,3,8 = (8 * 10 + 5) - 3 = 85 - 3 = 82

answer Sep 7, 2017 by Cris
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