Divisible by 3 and not by 9 are 285, 7392 and 15708.
Explanation:
We need to find which of the numbers 285, 629, 5490, 7392, 15708, 43695 are divisible by 3 but not by 9.
285
285 ÷ 3 = 95 Divisible
285 ÷ 9 = 31.66 Not divisible.
Correct
629
629 ÷ 3 = 209.67 Not divisible
629 ÷ 9 = 69.89 Not divisible.
Not correct
5490
5490 ÷ 3 = 1830 Divisible
5490 ÷ 9 = 610 Divisible.
Not correct
7392
7392 ÷ 3 = 2464 Divisible
7392 ÷ 9 = 821.33 Not divisible.
Correct
15708
15708 ÷ 3 = 5236 Divisible
15708 ÷ 9 = 1745.33 Not divisible.
Correct
43695
43695 ÷ 3 = 14565 Divisible
43695 ÷ 9 = 4855 Divisible.
Not correct
Divisible by 3 and not by 9 are 285, 7392 and 15708.