In a group of 60 integers, how many are divisible (with a remainder of 0) by neither 7 nor 13?
- Of the 60 numbers, 20 are divisible by 7 but not by 13.
- Of the 60 numbers, 30 are divisible by both 7 and 13.
In a group of 60 integers, how many are divisible (with a remainder of 0) by neither 7 nor 13?