IBM Ponder This #152 · December 2010

In an election, Charles came in last and Bob received 24.8% of the votes.
After counting two additional votes, he overtook Bob with 25.1% of the votes.
Assuming there were no ties and all the results are rounded to the nearest promille (one-tenth of a percent), how many votes did Alice get?

Solution

Best opened after a real attempt

To be added.