Subject
Govt.Jobs
Topic
সিকিউরিটি প্রিন্টিং কর্পোরেশন লি. সহকারি ব্যবস্থাপক (সাধারণ)-২৬.১১,২০২১
A number x is divided by 7. When this number is divided by 8, 12 and 16, It leaves a remainder 3 in each case. The least value of x is?
A number x is divided by 7. When this number is divided by 8, 12 and 16, It leaves a remainder 3 in each case. The least value of x is?
ক)
150খ)
148গ)
151ঘ)
147Explanation
8,12,16 এর ল.সা.গু =48 ধরি ,সংখ্যাটি =48x+3 যা 7 দ্বারা বিভাজ্য হবে এখন , x=1 হলে সংখ্যাটি 48.1 +3 =51 যা 7 দ্বারা বিভাজ্য নয় x=2 হলে সংখ্যাটি 48.2+3=99 যা দ্বারা বিভাজ্য নয় x=3 হলে সংখ্যাটি 48.3 +3 =147 যা 7 দ্বারা বিভাজ্য অতএব , সংখ্যাটি =147Related questions
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