Phone number

A phone number has nine digits, none of which are repeated. The middle digit of the second three-digit group is 3 times greater than the 6th digit and twice greater than the 7th. The three-digit number in the middle group is 2 times greater than the last three-digit number. The second digit is the sum of the 1st and 3rd, and the 1st is less than the third.
What is the phone number?

Final Answer:

X =  495762381

Step-by-step explanation:

X=ABCDEFHIJ E=6 DEF = 762 = 2×381 = 2\timesGHI B = 9 = A+C = 4+5 A=4 < C=5  X=495762381



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combinatoricsalgebrabasic operations and conceptsGrade of the word problem

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