The integers from 1 to 1000 are written in order around a circle. Starting at 1, every fifteenth number is marked (that is 1, 16, 31, etc.). This process is continued until a number is reached which has already been marked. How many unmarked numbers remain?

Question

Toppr Admin · Accepted Answer

Correct option is A- -800-

The integers from 1 to 1000 are written in order around a circle, starting at 1, every fifteenth number is marked (that is 1, 16, 31, etc.), this process is continued until a number is reached which has already been marked, then find the number of unmarked integers

Correct option is A. $$800$$