Acandle manufacturers sells cylindrical candles in sets

A candle manufacturer sells cylindrical candles in sets of three. Each candle in the set is a different size. The smallest candle has a radius of 0.5 inches and a height of 3 inches. The other two candles are scaled versions of the smallest, with scale factors of 2 and 3. How much wax is needed to create one set of candles?

A) 27π cubic inches  

B) 36π cubic inches  

C) 53π cubic inches  

D) 86π cubic inches

E) 98π cubic inches

The answer is A for this question i don't know if this is the question you, if it is i hope this helps you :)

the answer is 31.27mph

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this