For a 4-digit number, the sum of its digits in the thousands, hundreds and tens places is 14, the sum of its d

Question

For a 4-digit number, the sum of its digits in the thousands, hundreds and tens places is 14, the sum of its digits in the hundreds, tens and units places is 15, and the tens place digit is 4 more than the units place digit. Then the highest possible 4-digit number satisfying the above conditions is

Accepted Answer

Given the 4 digit number : Considering the number in thousands digit is a number in the hundredth digit is b, number in tens digit is c, number in the units digit is d. Let the number be abcd. Given that a+b+c = 14. (1) b+c+d = 15. (2) c = d+4. (3). In order to find the maximum number which satisfie