TS EAMCET · Maths · Permutation Combination
The number of -digit odd numbers divisible by that can be formed using the digits when repetition is not allowed is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
We have to form three digit number is divisible by 3 using the digits 1,2,3,4,5,6. For number to be odd last digit must be 1, 3, 5. Case I: When number is x y 1 For number to be divisible by 3, x+y+1=3n, n∈N and n>1 So, possible cases are…
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