AP ICET 2017 Shift 2 Paper

Question : 42 of 200

Marks: +1, -0

6,15,35,77,_______ ,221

Solution:

\;\;6,

\;\;\;\;15,

35,

\;\;\;\;77,

\;\;221,

\;\;↓

\;\;↓

↓

\;\;\;↓

\;\↓

\;\;\;\;\;↓

\;\;2×3\;\;\;3×5\;\;\;5×7\;\;\;7×11\;\;\;11×13\;\;\;13×17

↑ Product of consecutive prime number

∴?=11×13=143

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