Subject
Bank Exam
Topic
Jamuna Bank Ltd. - Probationary Officer - 2017
When n is divided by 8, the remainder is 5. Which of the following is NOT an even number ?
When n is divided by 8, the remainder is 5. Which of the following is NOT an even number ?
ক)
n + 3খ)
n - 3গ)
3n + 1ঘ)
5n + 2Explanation
Solution: প্রশ্নে বলা হচ্ছে, n কে 8 দ্বারা ভাগ করলে ভাগশেষ থাকে 5. নিচের কোনটি জোড় সংখ্যা নয় ? ধরি, n = 13, কারণ (8 1) + 5 = 13 [ হিসেবের সুবিধার জন্য ভাগফল = 1 ধরি ] এখন, অপশন a) এর n + 3 = 13 + 3 = 16 যা Even number তাই এটি বাদ । অপশন b) এর n - 3 = 13 - 3 = 10 যা Even number তাই এটি বাদ । অপশন c) এর 3n + 1 = ( 3 13 ) - 1 = 39 - 1 = 38, যা Even number তাই এটি বাদ । অপশন d) এর 5n + 2 = (5 13) + 2 = 65 + 2 = 67, যা Odd number তাই এটি ।Related questions
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