Mila strings beads like this: blue, yellow, red, blue again. How many blue beads will be among the first 17?
Show hints
- The blue bead is repeated every three spaces.
- List the places of blue beads up to 17.
Show the answer and solution
Answer: 6
Blue ones are in places 1, 4, 7, 10, 13 and 16. There are six of them.