How many positive 3-digit odd numbers can be formed using the digits 0, 1, 2, 3, 4, 5, without repetition?
103 105 123 125 135 143 145 153 201 203 205 213 215 231 235 241 243 245 251 253 301 305 315 321 325 341 345 351 401 403 405 413 415 421 423 425 431 435 451 453 501 503 513 521 523 531 541 543 Total = 48 such numbers
