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|Posté le: Mar 28 Nov - 17:44 (2017) Sujet du message: The sum of 3 numbers in arithmetic progression is 45
|The sum of 3 numbers in arithmetic progression is 45. If 2 is added to the first number, 3 to the second and 7 to the third, the new numbers will be in geometrical progression. Find the common difference in arithmetic progression.
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