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1. |
An ink pen, with a cylindrical barrel of diameter 2 cm and height 10.5 cm, completely filled with ink, can be used to write 4950 words. How many words can be written using 400 ml of ink? |
A. | 40000 |
B. | 60000 |
C. | 450000 |
D. | 80000 |
Answer» C. 450000 | |