How many three digit odd numbers can be formed from the digits 1, 2, 3, and 4, if digits can be repeated?
+118667 How many ways to chose the units digit?
how many ways to choose the tens digit?
how ways to choose the hundreds digit?
multiply the answers together.
Melody: They want "How many three digit ODD numbers" :
111 ( 1 ) , 113 ( 3 ) , 123 ( 6 ) , 133 ( 3 ) , 223 ( 3 ) , 233 ( 3 ) , 333 ( 1 ) >>Total combinations = 7
>>Total permutations =20 [Numbers in parentheses]
+37159 For ODD 3 digit integers
4 choices for first digit
4 choices for second digit
two choices for third digit ( 1 or 3) = 4 x 4 x 2 = 32 three digit ODD numbers
