A class in college has 150 students numbered from 1-150,in which all the even numbered students are doing CA, those whose number are divisible by 5 are doing Actuarial and those whose numbers are divisible by 7 are preparing for MB. How many of the students are doing nothing??​

answer: your answer is c

step-by-step explanation:

the absolute value function

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen