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math
Math 1
Shariful Islam Zinna
November 06, 2025
##Mathematical reasoning: đŠĩNumber System đŠĩ (P. 01-11)
15
"Serial No","Question","Correct Answer","Wrong Option 1","Wrong Option 2","Wrong Option 3","Explanation" "1","āĻোāύ āϏংāĻ্āϝাāϰ 1 āĻāĻŦং āĻ āϏংāĻ্āϝাāĻি āĻŦাāĻĻে āĻোāύো āĻāĻĻāĻĒাāĻĻāĻ āύেāĻ?","āĻŽৌāϞিāĻ āϏংāĻ্āϝা","āϝৌāĻিāĻ āϏংāĻ্āϝা","āĻāĻŖাāϤ্āĻŽāĻ āϏংāĻ্āϝা","āϧāĻŖাāϤ্āĻŽāĻ āϏংāĻ্āϝা" "2","āύিāĻেāϰ āĻোāύāĻি āĻŽৌāϞিāĻ āϏংāĻ্āϝা?","19","20","22","21" "3","n āĻāϰ āĻŽাāύ āĻ্āώুāĻĻ্āϰāϤāĻŽ āĻোāύ āϏ্āĻŦাāĻাāĻŦিāĻ āϏংāĻ্āϝাāϰ āĻāύ্āϝ 2n+1 āϏংāĻ্āϝাāĻি āĻŽৌāϞিāĻ āĻšāĻŦে āύা-","4","none","5","3" "4","āϝāĻĻি (n-1) āĻŦিāĻোāĻĄ় āĻšāϝ়, āϤāĻŦে āĻāϰ āϏāĻŦ āĻĨেāĻে āύিāĻāĻāĻŦāϰ্āϤী āĻ āĻĒāϰ āĻĻুāĻি āĻŦিāĻোāĻĄ় āϏংāĻ্āϝা āĻি āĻি?","n-3,n+1","n,n-2","n-3,n+5","n,n-1" "5","āϝāĻĻি āĻāĻāĻি āϏংāĻ্āϝাāϰ āĻ āĻ্āĻāĻুāϞো āĻāĻŽ āĻĻিāĻ āϝāĻĨাāĻ্āϰāĻŽে x,y,z āĻāĻŦং w āĻšāϝ় āϤāĻŦে āϏংāĻ্āϝাāĻি āĻāϤ?","10^3x+10^2y+10z+w","xyzw","wzyx","x+10y+100z" "6","āĻোāύ āϏংāĻ্āϝাāϰ āϏাāĻĨে 7 āϝোāĻ āĻāϰাāϰ āĻĒāϰ āϝোāĻāĻĢāϞ āĻে 5 āĻĻ্āĻŦাāϰা āĻুāĻŖ āĻāϰে āĻুāĻŖāĻĢāϞāĻে 9 āĻĻ্āĻŦাāϰা āĻাāĻ āĻāϰে āϤা āĻĨেāĻে 3 āĻŦিāϝ়োāĻ 12 āĻšāϝ়। āϤাāĻšāϞে āϏংāĻ্āϝাāĻি āĻāϤ?","20","30","40","60" "7","503535 āϏংāĻ্āϝাāĻিāϤে 3 āĻāϰ āϏ্āĻĨাāύীāϝ় āĻŽাāύāĻুāϞোāϰ āϝোāĻāĻĢāϞ āĻāϤ āĻšāĻŦে?","3030","6","60","3300" "8","āĻāĻāĻি āĻাāĻ āĻ ংāĻে āĻাāĻāĻĢāϞ, āĻাāĻ্āϝ āĻāĻŦং āĻাāĻāĻļেāώ āϝāĻĨাāĻ্āϰāĻŽে 15, 940, āĻāĻŦং 25। āĻাāĻāĻ āĻāϤ?","61","31","60","50" "9","āĻāĻāĻি āϏংāĻ্āϝাāĻে 19 āĻĻ্āĻŦাāϰা āĻাāĻ āĻāϰাāϝ় āĻাāĻāĻĢāϞ āĻāĻŦং āĻাāĻāĻļেāώেāϰ āĻĒাāϰ্āĻĨāĻ্āϝ 9 āĻšāϝ়৷ āϏংāĻ্āϝাāĻি āĻāϤ?","371","352","361","370" "10","āĻĻুāĻ āĻ ংāĻ āĻŦিāĻļিāώ্āĻ āĻāĻāĻি āϏংāĻ্āϝা āĻāĻŦং āĻ ংāĻāĻĻ্āĻŦāϝ়েāϰ āϏ্āĻĨাāύ āĻĒāϰিāĻŦāϰ্āϤāύ āĻāϰāϞে āϤাāĻĻেāϰ āĻĒাāϰ্āĻĨāĻ্āϝ āĻāϤāĻĻ্āĻŦাāϰা āĻŦিāĻাāĻ্āϝ āĻšāĻŦে?","9","5","7","11" "11","āĻāĻāĻি āϏংāĻ্āϝাāĻে 195 āĻĻ্āĻŦাāϰা āĻাāĻ āĻāϰāϞে 47 āĻ āĻŦāĻļিāώ্āĻ āĻĨাāĻে। āĻāĻāĻ āϏংāĻ্āϝাāĻে 15 āĻĻ্āĻŦাāϰা āĻাāĻ āĻāϰāϞে āĻāϤ āĻ āĻŦāĻļিāώ্āĻ āĻĨাāĻāĻŦে?","2","1","3","4" "12","āĻāĻāĻি āϏংāĻ্āϝাāĻে 5 āĻĻ্āĻŦাāϰা āĻাāĻ āĻāϰা āĻšāϞে āĻাāĻāĻļেāώ 3 āĻĨাāĻে āϤাāĻšāϞে āĻāĻāĻ āϏংāĻ্āϝাāϰ āĻŦāϰ্āĻāĻে 5 āĻĻ্āĻŦাāϰা āĻাāĻ āĻāϰāϞে āĻাāĻāĻļেāώ āĻāϤ āĻĨাāĻāĻŦে?","4","0","3","9" "13","3 āĻāϰ āϤিāύāĻি āϧাāϰাāĻŦাāĻšিāĻ āĻুāĻŖিāϤāĻেāϰ āĻুāĻŖāĻĢāϞ āĻোāύ āϏāϰ্āĻŦোāĻ্āĻ āϏংāĻ্āϝাāĻি āĻŦিāĻাāĻ্āϝ?","162","243","54","81" "14","āĻĻুāĻি āĻ্āϰāĻŽিāĻ āĻŦিāĻোāĻĄ় āĻĒূāϰ্āĻŖāϏংāĻ্āϝাāϰ āĻŦāϰ্āĻেāϰ āĻĒাāϰ্āĻĨāĻ্āϝ āĻāϤ āĻĻ্āĻŦাāϰা āĻŦিāĻাāĻ্āϝ?","4","3","6","7" "15","n āĻে 4 āĻĻ্āĻŦাāϰা āĻাāĻ āĻāϰা āĻšāϞে 3 āĻাāĻāĻļেāώ āĻĨাāĻে। 2n āĻে 4 āĻĻ্āĻŦাāϰা āĻাāĻ āĻāϰা āĻšāϞে āĻাāĻ āĻļেāώ āĻāϤ?","2","1","3","6"
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