UPSC CSAT 2019 LCM – cricket & Football problem



Solution for
In a school every student is assigned a unique identification number. A student is a football player if and only if the identification number is divisible by 4, whereas a student is a cricketer if and only if the identification number is divisible by 6. If every number from 1 to 100 is assigned to a student, then how many of them play cricket as well as football?

(a) 4

(b) 8

(c) 10

(d) 12v

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