If w,x,y,z are consecutive positive integers ; then which of the following is always odd?
[1] w*x+(y+2)^2*z
[2] w^x + z^y
[3] 2w^3 Choose the correct choice from the following answers:
A) 2
B) 2
C) 3
D) 1 and 2
E) 2 and 3
Plug in some numbers   w = 1   x = 2   y = 3   z = 4   Check the options -   [1] w*x+(y+2)^2*z = 1*2 + (3+2)^2 * 4 =&gt; 2 + 25*4= 
<gadget id="calculator">2 + 25*4</gadget>
<output>102</output>
102{ Not an odd Number }   [2] w^x + z^y= 1^2 + 4^3 =&gt; 1 + 64= 
<gadget id="calculator">1 + 64</gadget>
<output>65</output>
65{ Odd number }   3 2w^3= 2*1^3 = even   2   2
<result>A</result>
If w,x,y,z are consecutive positive integers ; then which of the following is always odd?
[1] w*x+(y+2)^2*z
[2] w^x + z^y
[3] 2w^3