Directions for Questions 46 - 50: What will come at the place of question mark (?) in the following number series?
$8, 15, 47, ?, 929, 5569$
185
184
186
187
188
Solution
The Pattern is
$\begin{align}
& 8\text{ }\times \text{ }2\text{ }-\text{ }1\text{ }=\text{ }15 \\
& 15\text{ }\times \text{ }3\text{ }+\text{ }2\text{ }=\text{ }47 \\
& 47\text{ }\times \text{ }4\text{ }-\text{ }3\text{ }=\text{ }185 \\
& 185\text{ }\times \text{ }5\text{ }+\text{ }4\text{ }=\text{ }929 \\
& 929\text{ }\times \text{ }6\text{ }-\text{ }5\text{ }=\text{ }5569 \\
\end{align}$