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Card 14 / 21:
A “friend” offers you the following “deal.” For a $10 fee, you may pick an envelope from a box containing 100 seemingly identical envelopes. However, each envelope contains a coupon for a free gift.
Ten of the coupons are for a free gift worth $6.Eighty of the coupons are for a free gift worth $8.Six of the coupons are for a free gift worth $12.Four of the coupons are for a free gift worth $40.
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