A 90 cm long wire is to be cut into two pieces so that one piece will be 2/5th of the other, how many centimeters will the shorter piece be? Answers:	A) 25	B) 20	C) 47	D) 36	E) 30

Rationale: "1 : 2 / 5 = 5 : 2 2 / 7 * 90 = 25 answer : a"
Answer: A