A bag of coins contains 2 quarters, 5 dimes, 3 nickels, and 4 pennies. If 2 coins are randomly chosen from the bag, one after the other, and not replaced, and if the total value of the chosen coins is 26 cents, what is the probability that a third coin randomly chosen from the bag will be a penny?
The probability that a third coin randomly chosen from the bag will be a penny will be 81%. There are 11 coins in the bag, you already drew 2 so 2/11. 9/11 is left, converted to % is 81%.