Question
Mathematics Question on Permutation and Combination
If a, b, c are odd positive integers, then number of integral solutions of a + b + c = 13, is
A
14
B
21
C
28
D
56
Answer
21
Explanation
Solution
The correct option is (B): 21
If a, b, c are odd positive integers, then number of integral solutions of a + b + c = 13, is
14
21
28
56
21
The correct option is (B): 21