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math
Math 4
Shariful Islam Zinna
November 26, 2025
##Mathematical reasoning: đŠĩNumber System đŠĩ (P. 38-50)
15
"Serial No","Question","Correct Answer","Wrong Option 1","Wrong Option 2","Wrong Option 3","Explanation" "1","āĻŦাংāϞা āĻĒāϰীāĻ্āώাāϝ় 5 āĻāύ āĻĒāϰিāĻ্āώাāϰ্āĻĨীāϰ āĻĒ্āϰাāĻĒ্āϤ āύāĻŽ্āĻŦāϰ āĻĒাঁāĻāĻি āϧাāϰাāĻŦাāĻšিāĻ āĻŦিāĻোāĻĄ় āϏংāĻ্āϝা। āϝāĻĻি āϤাāĻĻেāϰ āĻŽোāĻ āύাāĻŽ্āĻŦাāϰ 185 āĻšāϝ় āϤāĻŦে āϏāϰ্āĻŦোāĻ্āĻ āϏ্āĻোāϰ āĻāϤ?","41","43","39","45" "2","āĻāĻāĻি āϏংāĻ্āϝা 650 āĻĨেāĻে āϝāϤ āĻŦāĻĄ় 820 āĻĨেāĻে āϤāϤ āĻোāĻ। āϏংāĻ্āϝাāĻি āĻāϤ?","735","799","793","798" "3","A, B, C, D, E are five consecutive odd numbers. A + C = 146. What is the value of E?","79","71","75","81" "4","āϤিāύāĻি āϧাāϰাāĻŦাāĻšিāĻ āĻŦিāĻোāĻĄ় āϏংāĻ্āϝাāϰ āϝোāĻāĻĢāϞ 177.āĻļেāώ āϏংāĻ্āϝাāĻি āĻāϤ?","61","59","57","63" "5","āĻĻুāĻি āϏংāĻ্āϝাāϰ āϝোāĻāĻĢāϞ 10 āĻāĻŦং āϤাāĻĻেāϰ āĻŦিāĻĒāϰীāϤেāϰ āϝোāĻāĻĢāϞ 5/12। āϏংāĻ্āϝাāĻĻুāĻি āĻāϤ?","4,6","2,8","3 7","5,5" "6","āĻāĻāĻি āϏংāĻ্āϝাāϰ āĻĻুāĻ āĻুāύেāϰ āϏাāĻĨে 9 āϝোāĻ āĻāϰা āĻšāϞ,āĻāĻŦং āĻĢāϞাāĻĢāϞāĻিāĻে āϤিāύāĻুāύ āĻāϰāϞে 75 āĻšāϝ়। āϏংāĻ্āϝাāĻি āĻāϤ?","8","3.5","6","9" "7","āϤিāύāĻি āĻ্āϰāĻŽিāĻ āϏংāĻ্āϝাāϰ āĻুāĻŖāĻĢāϞ āϤাāĻĻেāϰ āϝোāĻāĻĢāϞেāϰ 8 āĻুāύ। āϏংāĻ্āϝা āϤিāύāĻি āĻāĻĄ় āĻāϤ?","5","3","4","8" "8","āĻোāύ āϏংāĻ্āϝাāĻে 45 āĻĻিāϝ়ে āĻাāĻ āĻāϰāϞে āĻাāĻāĻļেāώ 23 āĻĨাāĻে। āϝāĻĻি āϏংāĻ্āϝাāĻিāĻে 9 āĻĻিāϝ়ে āĻাāĻ āĻāϰা āĻšāϝ় āϤāĻŦে āĻাāĻāĻļেāώ āĻāϤ āĻšāĻŦে?","5","4","3","14" "9","āĻāĻāĻি āϏংāĻ্āϝা 742 āĻĨেāĻে āϝāϤ āĻŦāĻĄ় 830 āĻĨেāĻে āϤāϤ āĻোāĻ। āϏংāĻ্āϝাāĻি āĻāϤ?","786","882","782","760" "10","1 āĻĨেāĻে 20 āĻĒāϰ্āϝāύ্āϤ āĻŽৌāϞিāĻ āϏংāĻ্āϝা āĻāĻে āĻāϝ়āĻি?","8","5","7","9"
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