Provide your best answer for the following math problem. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The problem is: a man deposits $ 1000 in a bank at 2 % per annum and $ 1500 in uti at 7 % per annum . find the rate of interest for the whole sum .
5 %
4.68 %