- When divided by 5, it should leave a remainder of 4.
- When divided by 6, it should leave a remainder of 5.
- When divided by 7, it should leave a remainder of 6.
CLUE: For the first condition, a remainder of 4:
As multiples of 5 always end with either 0 or 5, remainder of 4 means the number should be ending with either 9 or 4...
That's how I figured it out...
So.. watcha waiting for??
Go get a pen and paper and START DOING!