Question
Question: The number of 3 digit odd numbers divisible by 3, using the digits 3, 4, 5, 6 when repetition is all...
The number of 3 digit odd numbers divisible by 3, using the digits 3, 4, 5, 6 when repetition is allowed, is
A
12
B
10
C
11
D
None of these
Answer
11
Explanation
Solution
3 digits odd numbers using only 3 and
Only 5 = 2
Using 3, 4 and 5 = 4
Using 4, 5 and 6 = 2
Using 3, 3 and 6 = 2
Using 6, 6 and 3 = 1
Total no. = 11