A 80 cm long wire is to be cut into two pieces so that one piece will be 3/5th of the other, how many centimeters will the shorter piece be?  Choose the most appropriate option.
A) 30	B) 20	C) 83	D) 21	E) 52

Rationale: "explanation : 1 : 3 / 5 = 5 : 3 3 / 8 * 80 = 30 answer : option a"
Answer: A