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] 51y
Pick
A) 1	B) 2	C) 3 and 2	D) 1 and 2	E) 2 and 3
Plug in some numbers   w = 1   x = 2   y = 3   z = 4   3 and 2heck 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] 51y= 51*3= 
<gadget id="calculator">51*3</gadget>
<output>153</output>
153 odd   [2] and [3]   3 and 2
<result>C</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] 51y