Subject
Bank Exam
Topic
Southeast Bank Ltd. - Probationary Officer - 2016
If n divided by 7 has a remainder of 2, what is the remainder when 3 times n is divided by 7 ?
If n divided by 7 has a remainder of 2, what is the remainder when 3 times n is divided by 7 ?
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4খ)
5গ)
6ঘ)
7Explanation
Solution: যদি n কে 7 দ্বারা ভাগ করা হয় তবে ভাগশেষ 2 হয় । n এর তিনগুণকে 7 দ্বারা ভাগ করলে ভাগশেষ কত হবে ? ধরি, 7 দিয়ে ভাগ করলে ভাগশেষ 2 থাকে এরকম সংখ্যা 9, 16, 23 কারণ, 7) 9 ( 1 7) 16 ( 2 7) 23 (3 7 14 21 __________ ___________ ____________ 2 2 2 এখন, n এর 3 গুণ মানে হচ্ছে = 3 9 = 27 = 3 16 = 48 = 3 23 = 69 ফলে এখন, 7) 27 (3 7) 48 (6 7) 69 (9 21 42 63 __________ __________ ____________ 6 6 6 ফলে ভাগশেষ থাকবে 6.Related questions
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