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

[EX Q]: Problem: the population of a bacteria culture doubles every 2 minutes . approximately how many minutes will it take for the population to grow from 1,000 to 300,000 bacteria
[EX A]: 16

[EX Q]: Problem: in one alloy there is 12 % chromium while in another alloy it is 8 % . 35 kg of the first alloy was melted together with 40 kg of the second one to form a third alloy . find the percentage of chromium in the new alloy .
[EX A]: 9.75 %

[EX Q]: Problem: the difference between a number and its two - fifth is 510 . what is 12 % of that number ?
[EX A]:
102