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Anonymous User Best Answer
Answer:1) 8 2x+y=8 Step-by-step explanation: If a number divisible by 72 means, it should be divisible by 9 and 8 I) divisible by 9: Sum of digits should be divisible by 9 So 1+3+4+x+5+8+y=(x+y+21)%9=0...(1) II) divisible by 8: Last three digits should be divisible by 8 Here, 54y should be divisible by 8 So possibilities of y is 0,2,4,6,8 because end number should be even. By calculating, 584 is the number divisible by 8 So y=4 Sub in equation (1), (x+4+21)%9=(x+25) %9=0 So x should be positive and single digit no So x must be 2 satisfying above equation x=2, y=4 So 2x+y=4+4=8plz mark it best😊