40.4k views
2 votes
Which of the numbers 285,627,5490,7295,43695 are divisible by 5 but not by 3

User Thinking
by
4.9k points

1 Answer

7 votes

Answer:

7295

Explanation:

The first thing we can do is rule out any numbers that cannot be divided by 5. Any number that ends in a 0 or a 5 can, so 627 cannot be. The next thing we do is use the division rule for dividing by 3. The rule states that if you add up the digits of a number, and it is divisible by 3, then so is that number.

2+8+5= 15 (multiple of 3)

5+4+9+0=18 (multiple of 3)

7+2+9+5=23 (not a multiple of 3)

4+3+6+9+5=27 (multiple of 3)

Hope you have a great day!

User Nayan Dabhi
by
4.4k points