Quiz — Enoncé_ (cadeau) prototypes d_examen 8.pdf

Question 1 sur 10 20:00

[{"id":24794,"question":"Quelle est la solution de l'équation 3x + 5 = 20 ?","option_a":"x = 5","option_b":"x = 6","option_c":"x = 7","option_d":"x = 8","option_e":"","option_f":"","bonne_reponse":"a","explication":"Pour résoudre 3x + 5 = 20, soustrayez 5 des deux côtés : 3x = 15, puis divisez par 3 : x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"x = 5\", \"b\": \"x = 6\", \"c\": \"x = 7\", \"d\": \"x = 8\"}}","_debug_options_count":4},{"id":24795,"question":"Le périmètre d'un carré de côté 4 cm est de 16 cm.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le périmètre d'un carré se calcule par 4 × côté. Ici, 4 × 4 = 16 cm, donc l'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":24796,"question":"Quelle est la fraction irréductible de 12\/18 ?","option_a":"2\/3","option_b":"4\/6","option_c":"6\/9","option_d":"3\/4","option_e":"","option_f":"","bonne_reponse":"a","explication":"La fraction 12\/18 se simplifie en divisant le numérateur et le dénominateur par 6, ce qui donne 2\/3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"2\/3\", \"b\": \"4\/6\", \"c\": \"6\/9\", \"d\": \"3\/4\"}}","_debug_options_count":4},{"id":24797,"question":"Un article coûte 80 DT et bénéficie d'une réduction de 20%. Quel est son nouveau prix ?","option_a":"60 DT","option_b":"64 DT","option_c":"70 DT","option_d":"75 DT","option_e":"","option_f":"","bonne_reponse":"b","explication":"La réduction de 20% sur 80 DT équivaut à 16 DT (80 × 0,20). Le nouveau prix est 80 - 16 = 64 DT.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"60 DT\", \"b\": \"64 DT\", \"c\": \"70 DT\", \"d\": \"75 DT\"}}","_debug_options_count":4},{"id":24798,"question":"L'aire d'un rectangle de longueur 5 cm et de largeur 3 cm est de 15 cm².","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"L'aire d'un rectangle se calcule par longueur × largeur. Ici, 5 × 3 = 15 cm², donc l'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":24799,"question":"Quelle est la solution de l'inéquation 2x - 7 \u003C 3 ?","option_a":"x \u003C 5","option_b":"x \u003C 6","option_c":"x \u003C 4","option_d":"x \u003C 3","option_e":"","option_f":"","bonne_reponse":"c","explication":"Pour résoudre 2x - 7 \u003C 3, ajoutez 7 des deux côtés : 2x \u003C 10, puis divisez par 2 : x \u003C 5. La solution correcte est x \u003C 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"x \u003C 5\", \"b\": \"x \u003C 6\", \"c\": \"x \u003C 4\", \"d\": \"x \u003C 3\"}}","_debug_options_count":4},{"id":24800,"question":"Un triangle rectangle a des côtés de 3 cm et 4 cm. Quelle est la longueur de l'hypoténuse ?","option_a":"5 cm","option_b":"6 cm","option_c":"7 cm","option_d":"8 cm","option_e":"","option_f":"","bonne_reponse":"a","explication":"D'après le théorème de Pythagore, l'hypoténuse se calcule par √(3² + 4²) = √(9 + 16) = √25 = 5 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"5 cm\", \"b\": \"6 cm\", \"c\": \"7 cm\", \"d\": \"8 cm\"}}","_debug_options_count":4},{"id":24801,"question":"La moyenne de 10, 12 et 14 est égale à 12.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La moyenne se calcule par (10 + 12 + 14) \/ 3 = 36 \/ 3 = 12. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":24802,"question":"Quelle est la valeur de x dans l'équation 5(x + 2) = 35 ?","option_a":"x = 3","option_b":"x = 4","option_c":"x = 5","option_d":"x = 6","option_e":"","option_f":"","bonne_reponse":"b","explication":"Pour résoudre 5(x + 2) = 35, divisez d'abord par 5 : x + 2 = 7, puis soustrayez 2 : x = 5. La solution correcte est x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"x = 3\", \"b\": \"x = 4\", \"c\": \"x = 5\", \"d\": \"x = 6\"}}","_debug_options_count":4},{"id":24803,"question":"Un sac contient 5 billes rouges et 7 billes bleues. Quelle est la probabilité de tirer une bille rouge ?","option_a":"5\/12","option_b":"7\/12","option_c":"5\/7","option_d":"1\/2","option_e":"","option_f":"","bonne_reponse":"a","explication":"La probabilité se calcule par le nombre de cas favorables sur le nombre total de cas. Ici, 5 billes rouges sur 12 au total, donc 5\/12.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"5\/12\", \"b\": \"7\/12\", \"c\": \"5\/7\", \"d\": \"1\/2\"}}","_debug_options_count":4}]