general Maths Puzzle

Here's a number sequence:
111, 112, 21123, 1312, 2114, 121, 25262, 73123...
Find the rule and post the two next numbers in the sequence.

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general Other Question

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 5 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 7 hours.

What fraction of the tank (initially empty) will be filled in 2.85 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.75). What numbers should be put instead of question marks:
4, 7, 6, 2, 3, 7, 2, ?, ?.