How many positive integers less than 30 are two less than a multiple of 5?

[dentist_dude]

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Can someone explain this question for me please?
This is the explanation
There are 5 possible integers that are a multiple of 5 and less than 30. They are: 5, 10 15, 20, and 25. However, there’s a trick here. 28 also counts, because it’s less than 30 and is two less than a multiple of 5 (30). Thus, there are a total of 6 integers that fit the criteria.
I just can't get why didn't we also count the 3,13,18,23 since those are also 2 less than the multiple of 5 that are under 30!

 

[DAT Destroyer]

Can someone explain this question for me please?
This is the explanation
There are 5 possible integers that are a multiple of 5 and less than 30. They are: 5, 10 15, 20, and 25. However, there’s a trick here. 28 also counts, because it’s less than 30 and is two less than a multiple of 5 (30). Thus, there are a total of 6 integers that fit the criteria.
I just can't get why didn't we also count the 3,13,18,23 since those are also 2 less than the multiple of 5 that are under 30!

The multiples of 5 less than 30 are: 5, 10, 15, 20, and 25. The numbers that are 2 less than a multiple of 5 are: 3, 8, 13, 18, 23 and 28 because 28 is less than 30.

Hope this helps!🙂

 

[dentist_dude]

Hope this helps!🙂

Thank you

 

[LuckBloodandSweat]

If you think math is fun, it will make you enjoy the problems more!

 

[DATGod001]

Some people need to get a life than they would not have soooooo many screen name.