In a class of 140 students numbered 1 to 140 , all even numbered students opted Mathematics course, those whose number i…
Q1
In a class of 140 students numbered 1 to 140 , all even numbered students opted Mathematics course, those whose number is divisible by 3 opted Physics course and those whose number is divisible by 5 opted Chemistry course. Then the number of students who did not opt for any of the three courses is:
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