My house number

My house has a number.

1) If my house number is a multiple of 3 3 , then it is a number from 50 50 to 59 59 , inclusive.

2)If my house number is not a multiple of 4 4 , then it is between 60 60 to 69 69 , inclusive.

3)If my house number is not a multiple of 6 6 , then it is a number from 70 70 to 79 79 , inclusive.

What is my house number?


The answer is 76.

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1 solution

Feathery Studio
May 20, 2015

All numbers from 50 50 to 59 59 that are multiples of 3 3 are not multiples of 4 4 and would not correspond to rule 2.

All numbers from 60 60 to 69 69 that are not multiples of 4 4 are not multiples of 6 6 , and therefore would not correspond to rule 3.

76 \boxed{76} is not a multiple of 3 3 , a multiple of 4 4 , but not a multiple of 6 6 .

good solution!,thanks

Siddharth Singh - 6 years ago

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