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Source: GMAT Prep
The sequence of four numbers \(a_1, a_2, a_3,\) and \(a_4\) is such that each number after the first is \(a_1-1\) greater than the preceding number. What is the value of \(a_1?\)
1) \(a_2=15\)
2) \(a_4=29\)
The OA is D
The sequence of four numbers \(a_1, a_2, a_3,\) and \(a_4\) is such that each number after the first is \(a_1-1\) greater than the preceding number. What is the value of \(a_1?\)
1) \(a_2=15\)
2) \(a_4=29\)
The OA is D
