JEE Main20253 Apr 2025Morning ShiftMathematicsPermutation and CombinationActual
If the number of seven-digit numbers, such that the sum of their digits is even, is m n 10^ n ; m, n 1,2,3, , 9 , then m+n is equal to _______
Correct answer
0
Step-by-step solution
Total 7 digit nos. =9000000 7 digit nos. having sum of digits Even =4500000 =9.5 10^5 m =9, n =5 m + n =14