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?
Your answer:
What is the phone number?
Your answer:
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Do you have a linear equation or system of equations and are looking for a solution? Or do you have a quadratic equation?
Would you like to compute the count of combinations?
You need to know the following knowledge to solve this word math problem:
combinatoricsalgebrabasic operations and conceptsGrade of the word problem
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