alleryA-য়ে 10 days আৰু B-য়ে 15 days সময় লয়। এদিন এৰি এদিনকৈ কাম কৰি, প্ৰথমে A-ই আৰম্ভ কৰিলে, তেওঁলোকে কামটো সম্পূৰ্ণ কৰিব
A12 days
B11 days
C10 days
D15 days
Answer & Solution
Correct answer: A. 12 days
প্ৰতিটো দুদিনীয়া চক্ৰত 1/10 + 1/15 = 1/6 সম্পন্ন হয়, গতিকে 6 টা চক্ৰত 12 days সময় লাগে।
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