[{"id": 1, "type": "short_answer", "question": "What is 60% of 20?", "correct_answer": "12"}, {"id": 2, "type": "multiple_choice", "options": ["182 square units", "169 square units", "26 square units", "52 square units"], "question": "What is the area of a rectangle with length 13 and width 13?", "correct_answer": "169 square units"}, {"id": 3, "type": "multiple_choice", "options": ["9:6", "20:8", "20:2", "5:8"], "question": "If the ratio is 5:2, what is the equivalent ratio when multiplied by 4?", "correct_answer": "20:8"}, {"id": 4, "type": "multiple_choice", "options": ["x = 7", "x = 6", "x = 12", "x = 5"], "question": "Solve for x: 2x = 12", "correct_answer": "x = 6"}, {"id": 5, "type": "short_answer", "question": "What is 60% of 70?", "correct_answer": "42"}]