Which number replace question mark in the series?
16 8 40 20 100 50 250 ? 625 Choose the correct choice from the following:	A) 254	B) 125	C) 354	D) 199	E) 540
Explanation: (alternate series of /2 and &amp;5)   16/2= 
<gadget id="calculator">16/2</gadget>
<output>8</output>
8   8 * 5= 
<gadget id="calculator">8 * 5</gadget>
<output>40</output>
40   40/2= 
<gadget id="calculator">40/2</gadget>
<output>20</output>
20   20 * 5= 
<gadget id="calculator">20 * 5</gadget>
<output>100</output>
100   100/2= 
<gadget id="calculator">100/2</gadget>
<output>50</output>
50   50 * 5= 
<gadget id="calculator">50 * 5</gadget>
<output>250</output>
250   250/2= 
<gadget id="calculator">250/2</gadget>
<output>125</output>
125   125 * 5= 
<gadget id="calculator">125 * 5</gadget>
<output>625</output>
625   correct answer is 125)125
<result>B</result>
Which number replace question mark in the series?
16 8 40 20 100 50 250 ? 625