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What is the sum of all of Manu's possible three-digit numbers?

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Manu uses only the digits 2 and 5 to make different three-digit numbers. For example, 252 and 222 are two possible numbers.
What is the sum of all of Manu's possible three-digit numbers?

posted Aug 30, 2016 by Anshika Utadi

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1 Answer

+1 vote

222
225
252
555
552
525
255
522
total 3108

answer Aug 31, 2016 by Naga Jyothi
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