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2021 Fall AMC 10B Problems

Revision as of 18:34, 22 November 2021 by Arcticturn (talk | contribs) (Problem 2)
2021 Fall AMC 10B (Answer Key)
Printable versions: WikiFall AoPS ResourcesFall PDF

Instructions

  1. This is a 25-question, multiple choice test. Each question is followed by answers marked A, B, C, D and E. Only one of these is correct.
  2. You will receive 6 points for each correct answer, 2.5 points for each problem left unanswered if the year is before 2006, 1.5 points for each problem left unanswered if the year is after 2006, and 0 points for each incorrect answer.
  3. No aids are permitted other than scratch paper, graph paper, ruler, compass, protractor and erasers (and calculators that are accepted for use on the SAT if before 2006. No problems on the test will require the use of a calculator).
  4. Figures are not necessarily drawn to scale.
  5. You will have 75 minutes working time to complete the test.
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Problem 1

What is the value of $1234+2341+3412+4123?$

$(\textbf{A})\: 10{,}000\qquad(\textbf{B}) \: 10{,}010\qquad(\textbf{C}) \: 10{,}110\qquad(\textbf{D}) \: 11{,}000\qquad(\textbf{E}) \: 11{,}110$

Problem 2

What is the area of the shaded figure shown below?

$(\textbf{A})\: 4\qquad(\textbf{B}) \: 6\qquad(\textbf{C}) \: 8\qquad(\textbf{D}) \: 10\qquad(\textbf{E}) \: 12$

See also

2021 Fall AMC 10B (ProblemsAnswer KeyResources)
Preceded by
2021 Fall AMC 10A
Followed by
2022 AMC 10A
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All AMC 10 Problems and Solutions

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