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1 . নিচের কোন Octal সংখ্যাটি Decimal সংখ্যা ৫৫ এর সমতুল্য

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Answer: Option C

Explanation:

Divide the number repeatedly by 9 until the quotient becomes 0

8। 55 7
8। 6 6
0
When 55 is divided by 8 , the quitient is 6 and the remiander is 7

When 6 is divided by 8, th quitient is 0 and the remiander is 6.

Write the remainders from bottom to top

(55)10 = (67)8

৪৪ তম বিসিএস প্রিলিমিনারি টেস্ট (27-05-2022)