If "try and get as much return as you can" is the only input to the decision we are likely not investing but speculating and there is a difference. So if we are

If "try and get as much return as you can" is the only input to the decision we are likely not investing but speculating and there is a difference. So if we are speculating here then I think I'd take those three envelopes to Vegas and split them between blackjack, craps and (hopefully) several hours of No-Limit poker. I could use a vacation anyway.