In a class of 120 students numbered 1 to 120, all even numbered students opt for Physics, whose numbers are divisible by 5 opt for Chemistry and those whose numbers are divisible by 7 opt for Math. How many opt for none of the three subjects?
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60 students opt for non of this subjects
john44:
please give proper explanation
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1
16 is correct.
i think so
i think so
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