A man has built a cubical water tank in his house. All sides of it are equal to 1.8m. All sides except the base are to be covered by tiles having equal sides of 30cm. How much money will he spend on tiles if cost of tiles is 400/dozen?

A man has built a cubical water tank in his house. All sides of it are

1.	A man has built a cubical water tank in his house. All sides of it are equal to 1.8m. All sides except the base are to be covered by tiles having equal sides of 30cm. How much money will he spend on tiles if cost of tiles is 400/dozen?
A.	7000
B.	7200
C.	6000
D.	6500
Answer» C. 6000