Quiz — تمارين متعدّدة الاختيارات.pdf

Question 1 sur 10 20:00

[{"id":19759,"question":"Quel est le résultat de l'opération suivante : 15 + (8 × 3) ?","option_a":"39","option_b":"33","option_c":"41","option_d":"51","option_e":"","option_f":"","bonne_reponse":"a","explication":"L'ordre des opérations (PEMDAS\/BODMAS) impose de multiplier d'abord : 8 × 3 = 24, puis additionner 15 + 24 = 39.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"39\", \"b\": \"33\", \"c\": \"41\", \"d\": \"51\"}}","_debug_options_count":4},{"id":19760,"question":"La fraction 3\/4 est équivalente à 0,75.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"3 divisé par 4 donne bien 0,75, 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":19761,"question":"Quel est le périmètre d'un rectangle de longueur 7 cm et de largeur 3 cm ?","option_a":"20 cm","option_b":"14 cm","option_c":"28 cm","option_d":"10 cm","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le périmètre se calcule avec la formule : 2 × (longueur + largeur) = 2 × (7 + 3) = 20 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\": \"20 cm\", \"b\": \"14 cm\", \"c\": \"28 cm\", \"d\": \"10 cm\"}}","_debug_options_count":4},{"id":19762,"question":"Le nombre 0,45 est égal à 45%.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Pour convertir un nombre décimal en pourcentage, on multiplie par 100 : 0,45 × 100 = 45%. 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":19763,"question":"Quelle est la solution de l'équation : 2x + 5 = 13 ?","option_a":"x = 4","option_b":"x = 5","option_c":"x = 6","option_d":"x = 8","option_e":"","option_f":"","bonne_reponse":"a","explication":"Soustraire 5 des deux côtés : 2x = 8, puis diviser par 2 : x = 4.","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 = 4\", \"b\": \"x = 5\", \"c\": \"x = 6\", \"d\": \"x = 8\"}}","_debug_options_count":4},{"id":19764,"question":"Un triangle rectangle a un angle de 90°. Les deux autres angles sont toujours complémentaires.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Dans un triangle rectangle, la somme des angles est 180°. Si un angle est 90°, les deux autres angles doivent sommer à 90°, donc ils sont complémentaires. 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":19765,"question":"Quel est le résultat de 12 ÷ 0,5 ?","option_a":"6","option_b":"24","option_c":"0,25","option_d":"12","option_e":"","option_f":"","bonne_reponse":"b","explication":"Diviser par 0,5 revient à multiplier par 2 : 12 × 2 = 24.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"6\", \"b\": \"24\", \"c\": \"0,25\", \"d\": \"12\"}}","_debug_options_count":4},{"id":19766,"question":"Le carré d'un nombre négatif est toujours positif.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un nombre négatif multiplié par lui-même donne un résultat positif (ex : (-3)² = 9). 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":19767,"question":"Quelle est l'aire d'un cercle de rayon 5 cm ? (π ≈ 3,14)","option_a":"78,5 cm²","option_b":"31,4 cm²","option_c":"15,7 cm²","option_d":"25 cm²","option_e":"","option_f":"","bonne_reponse":"a","explication":"La formule de l'aire d'un cercle est π × r². Donc 3,14 × 5² = 3,14 × 25 = 78,5 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"78,5 cm²\", \"b\": \"31,4 cm²\", \"c\": \"15,7 cm²\", \"d\": \"25 cm²\"}}","_debug_options_count":4},{"id":19768,"question":"Le PGCD de 18 et 24 est 6.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Les diviseurs de 18 sont : 1, 2, 3, 6, 9, 18. Ceux de 24 sont : 1, 2, 3, 4, 6, 8, 12, 24. Le plus grand diviseur commun est bien 6. 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}]