In a class 140 students numbered 1 to 140, all even numbered students opted Mathematics course, those whose number is divisible by 3 opted Physics cou

In a class 140 students numbered 1 to 140, all even numbered students opted Mathematics course, those whose number is divisible by 3 opted Physics cou
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In a class 140 students numbered 1 to 140, all even numbered students opted Mathematics course, those whose number is ... B. `42` C. `102` D. `1`
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