A statue is being carved by a sculptor. The original piece of marble weighed 140 kg. In the first week 60 percent is cut away. In the second week 40 percent of the remainder is cut away. In the third week the statue is completed when 30 percent of the remainder is cut away. What is the weight of the final statue?	Answers
A) 24 kg B) 23 kg C) 28 kg D) 25 kg E) 27 kg

Rationale: a 24 kg 140 ã — 0.4 ã — 0.6 ã — 0.7 = 24 kg .
Answer: A