If 50% of x equals the sum of y and 20, then what is the value of x–2y? Choose the correct option:
A) 20
B) 40
C) 60
D) 80
E) 90
Explanation :   Given, 50% of x equals the sum of y and 20.   =&gt;(50/100)×x=y+20.   =&gt;x/2=y+20.   =&gt;x=2y+40.   =&gt;x–2y= 40.   Answer : 40
<result>B</result>
If 50% of x equals the sum of y and 20, then what is the value of x–2y?