Stupid question asked in interview.

Use docker, all container problems will be solved.

They are still asking puzzles. Which profile interview was for?

Have you taken into consideration the fact that oil and water don't mix? Ofc it's still possible to get some amount of both water and oil in the spoon, or just water or just oil, but ig the not mixing part was what was being tested

Higher purity of what?? Oil or Water??

This should have been asked as counter

It will remain same, assuming oil floats on top of water

The interviewer is correct, the purity in each remains the same. You probably took 100ml as volume for each and transferred 10ml to C2. When transferring back from C2 to C1, need to be careful to reduce volume by 10ml and not 10%.
Try it once, you'll see purity of each will be 100/11%

from chatgpt---

Let's analyze the situation step by step:

Initial State: Container C1: Oil volume V Container C2: Water volume V Step 1: Take a spoonful of liquid from C1 (which is oil) and pour it into C2. Now, C1 has (V - 1) volume of oil, and C2 has (V + 1) volume of water. Step 2: Take a spoonful of liquid from C2 (which is water) and pour it into C1. Now, C1 has (V - 1 + 1) = V volume of oil, and C2 has (V + 1 - 1) = V volume of water.

After these two steps, both containers return to their original volumes, but the contents have been mixed.

The key point to note is that since the volumes are equal and the liquids are mixed, the concentrations (purity) of oil in C1 and water in C2 are the same. Each container now has a mixture of oil and water in the same proportion as the original contents.

Therefore, after these steps, both containers, C1 and C2, will have the same purity, with the same concentration of oil in C1 and water in C2 as in the initial state.