# math

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i am a multiple of 5, i am even and less than 30 but more than 20. my ones digits is 3 more than my tens digits

• math -

I am a multiple of 5:
5 10 15 20 25 30 35 40 ....

I am even: (that leaves)
10 20 30 40 ...

I am < 30: (that leaves)
10 20

but I am > 20 :

No such number.

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