[{"id": 1, "type": "multiple_choice", "options": ["14:8", "9:6", "14:4", "7:8"], "question": "If the ratio is 7:4, what is the equivalent ratio when multiplied by 2?", "correct_answer": "14:8"}, {"id": 2, "type": "true_false", "question": "The square root of 49 is 7.", "correct_answer": "True"}, {"id": 3, "type": "multiple_choice", "options": ["x = 76", "x = 20", "x = 19", "x = 18"], "question": "Solve for x: 4x = 76", "correct_answer": "x = 19"}, {"id": 4, "type": "multiple_choice", "options": ["52 square units", "17 square units", "34 square units", "56 square units"], "question": "What is the area of a rectangle with length 4 and width 13?", "correct_answer": "52 square units"}, {"id": 5, "type": "multiple_choice", "options": ["x = 39", "x = 13", "x = 14", "x = 12"], "question": "Solve for x: 3x = 39", "correct_answer": "x = 13"}]