A 70 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?
Options:
(A) 21
(B) 20
(C) 17
(D) 12
(E) 18 Now, let's think a bit. Some random thoughts:
user
1: 2/5 = 5: 2
2/7 * 70 = 20
The final answer: (B).
assistant