X percents of the rooms are suits, Y percent of the rooms are painted light blue. Which of the following best represents the least percentage of the light blue painted suits?	Choose the correct answer:
A) X-Y B) Y-X +100 C) 100X-Y D) X+Y-100 E) 100-XY
Using the simple formula   100 = X + Y - BOTH - &gt; Here X = % of Suits , Y = % of light blue painted rooms and BOTH = % of suits painted in light blue colour   So now, BOTH = X+Y -100 and now you can manipulate the value of X and Y to get the max and minimum values.   Hence Answer X+Y-100
<result>D</result>
X percents of the rooms are suits, Y percent of the rooms are painted light blue. Which of the following best represents the least percentage of the light blue painted suits?