braided rope In the figure above, three wires are braided. That is, by starting in the order A, B, C, the outer left wire A is brought over wire B to the middle position, forming the order shown in step 1, then the outer right wire C is brought to the new middle position shown in step 2, and so on, alternately bringing each new left and each new right wire to the middle. At what numbered step does the braid first repeat the original order A, B, C ? (A) 3 (B) 4 (C) 5 (D) 6 (E) 7

Show/Hide Answer

Answer:

Choice D Level of Difficulty E M H This is a problem that involves mental manipulation of the given diagram, but it can be made much easier simply by tracking changes on paper as you go through the braiding process. Step 1 BAC Step 2 BCA Step 3 CBA Step 4 CAB Step 5 ACB Step 6 ABC At Step 6 we return to the original positions of ABC, and that is choice D.

Our SAT tutors can help you become very proficient with all types of math SAT questions.

Earn 5% cash for every purchase you refer.

Latest News

Read All News
April 20, 2021

New subject available! Quantitative Methods

Hey students!  24HourAnswers.com is proud to annouce that we've added another topic to our Business subject area. You can now receive online tutoring for Quantitative Methods. You can learn more about Quantitative Methods at https://www.24houranswers.com/subjects/Business/Quantitative-Methods.   -24HourAnswers team
READ MORE
April 12, 2021

$500 College Scholarship Deadline

Just a reminder to our students and website visitors that the deadline for the Spring semester scholarship is May 1st. To learn more about applying, please visit our blog.  https://www.24houranswers.com/blog/75/24HourAnswers-500-Scholarship  
READ MORE
Live Chats