The number of marbles of the Hero are: 26-5 = 21 (marbles)The number of marbles is: 26 + 7 = 33 (marbles)The number of marbles of all three is: 26 + 21 + 33 = 80 (marbles) Meeting number: 80 marbles
Number of Hung's marbles: 26-5 = 21 (balls) Number of Binh's balls: 26 + 7 = 33 (balls) Number of balls 3 is: 26 + 21 + 33 = 80 (Member bi) Answer: 80 marbles