Number System (P. 12-24) 20 "Serial No","Question","Correct Answer","Wrong Option 1","Wrong Option 2","Wrong Option 3","Explanation" "1","3 অংকের কতগুলো সংখ্যা 6 দ্বারা নি:শেষে বিভাজ্য","150","149","151","166" "2","The sum of the perfect squares between 120 and 300","1400","1204","1024","1296" "3","If n is even, 6^n - 1 divisible by","35","6","30","37" "4","The digit in the unit's place of the number (67)^25 - 1","6","0","8","None" "5","78*3945 সংখ্যাটি 11 দ্বারা নি:শেষ বিভাজ্য হলে * চিহ্নিত অংশে কত বসবে?","5","9","0","1" "6","1111 থেকে 99 এর কত গুন বিয়োগ করলে বিয়োগফল 99 থেকে ছোট হবে","11","10","12","13" "7","কত অংকের ক্ষুদ্রতম সংখ্যাকে 7 দ্বারা গুন করলে সব গুলো 9 হবে","6","3","5","4" "8","if m and n are natural number such that (2^m - 2^n)=960,what is the value of m","10","12","15","13" "9","n স্বাভাবিক সংখ্যা হলে, (6n^2 + 6n) কোন সংখ্যা দ্বারা সর্বদা বিভাজ্য হবে","6 এবং 12","6","12","18" "10","নিচের কোন সংখ্যাটি 3,7,9 এবং 11 দ্বারা নি:শেষ বিভাজ্য হবে","2079","639","3791","37911"
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