Question

in a class of 120 students numbered 1,to 120 all even numbered students opt for physics those whose number divisible by 5 opt for chemistry and those whose numbers are divisible by 7 opt for mathematics how many opt for none of three subjects?​

Answer 1

Answer:

The answer is 54.

Step-by-step explanation:

Those whose number divisible by 5 who opted for Chemistry, the no of students are 10.

Those whose number divisible by 7 who opted for Mathematics, the no of students are 6.

120 all even numbered students opted for Physics are 50.

So now 50+10+6=66.

By totalling 120-66=54.

This is the final answer for the question.

Hope this may help you.