The mystery number is a two didget even number. It is a multiple of2,4,5,and 10 but not a multiple of3 or 7 . Help please.
20
It could also be any multiple of 20.
Show how u got the answer please
20 has two digits
20 is an even number
20 is a multiple of 2, 4, 5, and 10
20 is not a multiple of 3 or 7
Did not put with two left over.
20 divided by 3 = 6 with a remainder of 2.
To determine the mystery number, we know that it is a two-digit even number that is a multiple of 2, 4, 5, and 10. However, it is not a multiple of 3 or 7.
Let's break down the requirements step by step:
1. It is a two-digit number: This means that the mystery number must be between 10 and 99 (inclusive). We'll explore the numbers between 10 and 99 to find the one that meets all the given criteria.
2. It is an even number: This narrows down our options to numbers that end with 0, 2, 4, 6, or 8.
3. It is a multiple of 2, 4, 5, and 10: Out of the remaining options (10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, etc.), we need to find a number that is divisible by 2, 4, 5, and 10.
- Starting with multiples of 10 since they must end with 0, we find that numbers such as 10, 20, 30, and 40 satisfy this condition.
- But since the mystery number is not a multiple of 3 or 7, we can eliminate 30 and 40 from our list.
- Among the remaining options, 10 and 20, we need to determine if they are divisible by 4.
- 10 is not divisible by 4, so we can eliminate it from our options.
- 20, on the other hand, is divisible by 4, since it can be divided evenly into groups of four (20 ÷ 4 = 5).
Therefore, the mystery number is 20. It is a two-digit even number that is a multiple of 2, 4, 5, and 10 but not a multiple of 3 or 7.