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Question: Average mark in Math in a class of 40 students is 45. Average mark of all the 30 boys is 50. Then the average mark obtained by the girls is :
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Question: Average mark in Math in a class of 40 students is 45. Average mark of all the 30 boys is 50. Then the average mark obtained by the girls is :
Question 1: Average mark in Math in a class of 40 students is 45. Average mark of all the 30 boys is 50. Then the average mark obtained by the girls is :
View topic: গড় (Average)
30
35
25
40
Source: Bangladesh Bank - Assistant Director - 2010
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Answer: 30
Explanation:
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বাংলাদেশ এর ক্ষুদ্র নৃগোষ্ঠী
বিন্যাস, সমবেশ ও সম্ভাব্যতা (Permutation, Combination and Probability)
জাতিসংঘ ও অন্যান্য আন্তর্জাতিক সংস্থা
বাক্যতত্ত্ব বা পদক্রম (Syntax)
প্রবাদ-প্রবচন
Synonyms and Antonyms
শব্দের প্রকারভেদ ও উৎস
Appropriate Preposition
বিখ্যাত সাহিত্যিকদের বিখ্যাত উক্তি
সংবাদপত্র, সংবাদ সংস্থা ও সম্পাদক
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