The Strategy
¥E Å peN p (1-p)eN + (1-p)
As N ˆ infinity, the first term becomes very large (positive), the third term very large (negative), and the other terms are negligible by comparison.
¥So for Ron to have the maximum winnings, he should choose p = 1:
E Å eN, which will become arbitrarily large as N ˆ infinity, no matter how small e is.