Dracula 3: The Path of the Dragon Hints

How can I enter the total number of granulocytes?

  • 1 of 10: First, you have to calculate the answer using the second number you got from the test.
  • 2 of 10: Remember that you marked a sample of 100 granulocytes and then put them back into the test tube (which is 1 ml, so there's no measurement difficulties there).
  • 3 of 10: You then took a sample from the test tube and checked to see how many granulocytes out of that 100 were marked.
  • 4 of 10: Professor Krüger explains how this works on the last page of his letter, though he doesn't say exactly how the calculation is done.
  • 5 of 10: The idea is that the percentage of marked granulocytes in the second sample is (statistically) the ratio of total marked granulocytes to total granulocytes.
  • 6 of 10: You need to figure out a formula that you can use to quickly calculate the total number of granulocytes once the second test number is plugged into it.
  • 7 of 10: You'll end up with the fact that the total number of granulocytes is 10,000 divided by the second test result number.
  • 8 of 10: With blood sample 811, the second result number is 10, so the total number of granulocytes is 10,000 / 10, which equals 1000.
  • 9 of 10: To enter that number on the sample 811 page in the folder, just click once on the leftmost of the four empty boxes.
  • 10 of 10: NOTE: If the number includes a decimal, like if you had to divide 10,000 by 31, ignore the decimal part (getting 322 in that example).