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Question: Three math classes , X, Y , and Z, take an algebra test. The average score in class X is 83. The average score in class Y is 76. The average score in class Z is 85. The average score of all students in classes X and Y together is 79. The average score of all student classes Y and Z together is 81. What is the average for all the three classes?
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Question: Three math classes , X, Y , and Z, take an algebra test. The average score in class X is 83. The average score in class Y is 76. The average score in class Z is 85. The average score of all students in classes X and Y together is 79. The average score of all student classes Y and Z together is 81. What is the average for all the three classes?
Question 1: Three math classes , X, Y , and Z, take an algebra test. The average score in class X is 83. The average score in class Y is 76. The average score in class Z is 85. The average score of all students in classes X and Y together is 79. The average score of all student classes Y and Z together is 81. What is the average for all the three classes?
View topic: গড় (Average)
81
81.5
82
84.5
Source: Bangladesh Bank - Assistant Director - 2009
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Answer: 81.5
Explanation:
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২থেকে শুরু করে পর পর পাঁচটি জোড় সংখ্যার গড় কত হবে?
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অনুকার শব্দ, ধ্বন্যাত্মক শব্দ ও শব্দদ্বৈত
প্রবাদ-প্রবচন
সময়, দূরত্ব ও গতিবেগ (Time, distance & speed)
মুক্তিযুদ্ধ ও ভাষা আন্দোলন
সাহিত্যিকদের আত্মজীবনী
English Proverbs
বাংলাদেশের সরকার বাবস্থা ও প্রতিষ্ঠান
নল ও চৌবাচ্চা (Pipes and Cistern)
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গড় (Average)
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