The task is to generate the correct answer for a given math problem.

Q: Problem: the compound interest on $ 30,000 at 7 % p . a is $ . 4347 . find out the period ( in years ) ?

A: 2
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Q: Problem: if shares of two persons in profits are rs . 600 and rs . 1000 then ratio of their capitals is

A: 3 : 5
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Q: Problem: the population of a bacteria colony doubles every day . if it was started 9 days ago with 2 bacteria and each bacteria lives for 12 days , how large is the colony today ?

A:
1024
****