","comment":{"@type":"Comment","text":"How many ft are there in 21 in? "},"educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Mathematics"},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Length (imperial)"}],"encodingFormat":"text/markdown","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","suggestedAnswer":[{"@type":"Answer","position":0,"text":"$$1\\frac{1}{2} \\text{ ft}$$","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"This is the wrong answer"}},{"@type":"Answer","position":1,"text":"2 ft","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"This is the wrong answer"}},{"@type":"Answer","position":2,"text":"$$2\\frac{1}{4} \\text{ ft}$$","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"This is the wrong answer"}}],"acceptedAnswer":{"@type":"Answer","position":3,"text":"$$1\\frac{3}{4} \\text{ ft}$$","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"This is the correct answer"},"answerExplanation":{"@type":"Comment","text":"The correct answer is: $$1\\frac{3}{4} \\text{ ft}$$"}}}}