If I have total $42 to buy coming 30/09/2024, how should I buy and what number, please give the number and how, so that have a higher chances to strike.

To maximize your chances of winning the Singapore Toto draw on 30/09/2024, you should consider the following strategy:

1. **Choose a System Entry**: Since you have $42, you can purchase a System 7 entry, which covers 7 numbers out of the possible 49 numbers. This will cost you $42, and you can choose any 7 numbers you prefer.
2. **Select Hot and Cold Numbers**: To balance your selection, choose 3-4 hot numbers (those that have appeared frequently in the past few draws) and 3-4 cold numbers (those that have not been drawn recently). For example, you could choose:
* Hot numbers: 19, 29, 31, 37
* Cold numbers: 1, 2, 3, 21
3. **Include a Mix of Odd and Even Numbers**: Ensure your selection includes a mix of odd and even numbers. This will increase your chances of matching the winning numbers, as the Toto game favors a balanced distribution of odd and even numbers.
4. **Avoid Clustering**: Spread your selected numbers across the range, avoiding clusters or patterns that might be easily identified by other players. For example, avoid choosing three consecutive numbers or numbers that form an obvious pattern.
5. **Consider QuickPick**: If you're unsure about choosing your own numbers, you could opt for the QuickPick option, which randomly selects your numbers for you. This can be a good strategy if you're looking to increase your chances without much thought or planning.

**Final Recommendation**: Based on the above strategy, here's a suggested set of 7 numbers you could consider for your System 7 entry:

19, 29, 31, 37, 1, 2, 21

Remember, while this strategy increases your chances, it's important to understand that the Toto game is still a game of chance, and there is no guaranteed way to win. Enjoy the process and good luck!