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**Read the passage below and solve the questions based on it.**

There are 2 filling taps A and B and an emptying tap C which are used in a laboratory to fill or empty bottles. The three taps are attached to a computer and they function according to the commands given by the computer. The following are the commands that the computer gives:

**Command Effect**

F(A, x, t_{1}) Fill the bottle with tap A at *x* cc/minute for t_{1} minute

F(B, y, t_{2}) Fill the bottle with tap B at *y* cc/minute for t_{2} minute

E(C, z, t_{3}) Empty the bottle with tap C at *z* cc/minute for t_{3} minute

The following commands, in the given order, are used to fill an empty bottle and each command can be executed only after the previous command is completed. What is the final volume after these commands?

**F (A, 10, 600), E (C, 50, 20)**

**F (A, 10, 400), F (B, 20, 200)**

**F (A, 50, 100), F (B, 20, 50)**

**E (C, 10, 50), F (B, 20, 75)**