Subject
Bank Exam
Topic
City Bank Ltd. - Management Trainee Officer - 2018
If three metal cubes having sides of 3cm, 4cm and 5cm were melted to make a single cube, what would be the length of the new cube ?
If three metal cubes having sides of 3cm, 4cm and 5cm were melted to make a single cube, what would be the length of the new cube ?
ক)
7.5 cmখ)
6.5 cmগ)
6 cmঘ)
7 cmExplanation
প্রশ্নে বলা হচ্ছে 3cm, 4cm এবং 5cm একবাহু বিশিষ্ট তিনটি ঘনককে গলিয়ে একটি ঘনক তৈরী করা হলে নতুন ঘনকের দৈর্ঘ্য কত হবে ? ধরি, নতুন ঘনকের এক বাহু দৈর্ঘ্য a cm প্রশ্নমতে, a 3 = 3 3 + 4 3 + 5 3 => a 3 = 27 + 64 + 125 => a 3 = 216 => a = = (6 3 ) a = 6 অতএব, নতুন ঘনকের এক বাহুর দৈর্ঘ্য 6cm.Related questions
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