5 but not 7

How many numbers from 1 to 100 (inclusive) are divisible by 5 but not divisible by 7?
 

Difficulty level (1 very easy - 10 very hard): 2

Topics:
Arithmetic Number Theory -> Modular Arithmetic / Remainder Arithmetic -> Divisibility Rules Number Theory -> Division
Sources:
ליאל Avatar
ליאל - 5 years ago
18

Noam Faibish Avatar
Noam Faibish - 2 years ago
18

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