AP EAMCET201725 Apr 2017Morning ShiftMathematicsPermutation and CombinationActual
The number of four digit numbers that can be formed using the digits 1,2,3,4,5,6,7,8,9 which are divisible by 3 , when repetition of digits is allowed any number of times, is
Options
- A2187
- B1458
- C6561
- D2916
Correct answer
A. 2187
Step-by-step solution
No solution. Refer to answer key.