Number Series-Test 1 (Finding the missing term)

1)

What will come in place of question mark (?) in the following number series?

17, 19, 25, 37, ?, 87

[SBI PO, 2015]
Discussion
2)

61, 82, 124, 187, ?, 376

[SBI PO, 2015]
Discussion
3)

23, 30, 46, 80, 141, ?

[SBI PO, 2015]
Discussion
4)

179, 180, 172, 199, 135, ?

[SBI PO, 2015]
Discussion
5)

14, 6, 5, 6.5, 12, ?

[SBI PO, 2015]
Discussion

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