alexandersik1118 alexandersik1118

23-09-2022
Mathematics

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A deck of cards is numbered 1 to 50. Pamela draws 3 cards from it. The sum of the number on any 2 cards are 60, 28 and 58.
(a) Find the 3 numbers.
(b) She draws a fourth card and average of the 4 numbers is 20. What is the number of the fourth card?

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