If each term in the sum W=a1+a2+a3+...+an either 2 or 22 and the sum equals 100, which of the following could be equal to n?
Choose the correct choice.
A) 38
B) 39
C) 40
D) 41
E) 42
Min value of 'n' can be 10 i.e 4*22+6*12 =W=&gt; 22+22+22+22+2+2+2+2+2+2= 
<gadget id="calculator">22+22+22+22+2+2+2+2+2+2</gadget>
<output>100</output>
100   Since we don't have 10 in the options proceed further, (10-1)+22/2=&gt; 20 digits, which is again not in the options    (20-1) + 22/2= 
<gadget id="calculator"> (20-1) + 22/2</gadget>
<output>30</output>
30 digits ( not in options)   (30-1) + 22/2= 
<gadget id="calculator">(30-1) + 22/2</gadget>
<output>40</output>
40 digits   Hence 40.
<result>C</result>
If each term in the sum W=a1+a2+a3+...+an either 2 or 22 and the sum equals 100, which of the following could be equal to n?