You have won first prize in the Pirate's Den contest. You get to choose one of twenty bags of gold coins, each bag has well more than one hundred one ounce coins. Nineteen bags have fake coins that weigh 1/10th ounce less than the real ones. You also have a scale so you can weigh them except it's one of those bus station scales that works only when you insert a penny and you only have one penny. When the weight on the scale changes the window closes on the scale.

People like Oldog are way to fast so please just let us know when you have it

and bring your answer on Tues.