If the weight of 12 meters long rod is 12.2 kg. What is the weight of 6 meters long rod ? Options:
A) 7.2 kg .	B) 10.8 kg .	C) 12.4 kg .	D) 6.1 kg	E) none

Rationale: "answer ∵ weight of 12 m long rod = 12.2 kg ∴ weight of 1 m long rod = 12.2 / 12 kg ∴ weight of 6 m long rod = 12.2 x 6 / 12 = 6.1 kg option : d"
Answer: D