A rope 20 meters long is cut into two pieces. If the length of one piece of rope is 3 meters shorter than the length of the other, what is the length, in meters, of the longer piece of rope?  Choose the correct choice.
A) 7.5	B) 8.9	C) 9.9	D) 11.5	E) 11.7
Length of the rope = 20 meters.   Assume length of longer piece = x meters.   Length of shorter piece = x - 3   We know that x + x - 3 = 20   2x = 23   Length of the longer piece = x = 11.5 meters   Correct Option: 11.5
<result>D</result>
A rope 20 meters long is cut into two pieces. If the length of one piece of rope is 3 meters shorter than the length of the other, what is the length, in meters, of the longer piece of rope?