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দু অঙ্কবিশিষ্ট কোনো সংখ্যার অঙ্ক দুটির অন্তর ২; অঙ্ক দুটি স্থান বিনিময় করলে যে সংখ্যা পাওয়া যায়, তা প্রদত্ত সংখ্যার দ্বিগুণ অপেক্ষা 6 কম। সংখ্যাটি কত?
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ANSWER : 3
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<p><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">প্রথমে অপশন ধরে সমাধান করি ,যা ১০ সেকেন্ডেই সমাধান করা সম্ভব ।দেখুন ঃ</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">৪ - ২ = ২ এবং ২৪ এর উল্টো সংখ্যা ৪২ যা ২৪ এর দ্বিগুন ৪৮ অপেক্ষা ৬ কম।তাই এটি উওর ।</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">Alternative :ধরি , দশক স্থানীয় অঙ্ক x</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">এবং একক স্থানীয় অঙ্ক y</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">অতএব সংখ্যা টি = ( ১০x + y)</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;"> প্রশ্নমতে, y - x = ২.....(1)</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">এবং ১০y + x = ২(১০x + y) - ৬ .....(2)</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">সমীকরণ 1 নং হতে পাই ,y - x = ২</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">or,y = x + ২ ....(3)</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">y এর মান সমীকরণ (2) নং এ বসাই </span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">১০y + x = ২(১০x + y) - ৬</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">or,১০y + x = ২০x + ২y - ৬</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">or,১৯x - ৮y = ৬</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;"> ১৯x - ৮ (x + ২) = ৬</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">১৯x - ৮x - ১৬ = ৬</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">১১x = ২২</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">অতএব x = ২২/১১ = ২</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">এখন এরমান (3) নং এ বসাই</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">y = x + ২</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;">y = ২ + ২ = ৪</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;"> অতএব নির্নেয় সংখ্যাটি ১০x + y = (১০× ২) + ৪</span><br style = "box - sizing: border - box; font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px;" /><span style = "font - family: 'source sans pro', 'helvetica neue', Helvetica, Arial, sans - serif; font - size: 15.73px; background - color: #ffffff;"> = ২০ + ৪ = ২৪</span></p>
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