alleryএকটি শব্দে 4টি ভিন্ন বর্ণ রয়েছে। এর সমস্ত বর্ণ পুনর্বিন্যাস করে কতগুলি বিন্যাস তৈরি করা সম্ভব?
A16
B24
C12
D48
Answer & Solution
Correct answer: B. 24
চারটি ভিন্ন বর্ণকে 4 x 3 x 2 x 1 = 24 উপায়ে সাজানো যেতে পারে।
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