Question

In a certain number series, there are six terms in total. The 2nd to 6th terms of the series are: 16, 25, 37, 52, 70 The difference between consecutive terms of the series (from the 1st to the 6th term) forms an arithmetic progression with common difference 3. What is the 1st term of the series?

A 10
B 12
C 17
D 23
E None of these
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