Scenario:
Person A: has a good mining rig and run for 24 hours and produces: 1000 mega hashes, but found only 1 share.
Person B: has a bad mining rig and run for 24 hours and produces: 1 mega hash, but found 1 share on first attempt
Question:
So, how does mining pool know, if we have actually gone through all the 1000 mega hashes to submit one share to the mining pool (Person A has done more work than person B)?
But person B who has low hashing power already found a share but has not done any work compared to person A
How does mining pool get to know if Person A has done more work than Person B, as miner does not submit any unsuccessful hashes but the successful ones, but already more work has done.