ক ও খ একটি কাজ ১২ দিনে করতে পারে। ক একা কাজটি ২০ দিনে করতে পারে। খ একা কাজটি কতদিনে করতে পারবে?
A. ২৫
B. ৩০
C. ৩৫
D. ৪০
ডাক জীবন বীমা, পূর্বাঞ্চল, ঢাকা,পিএলআই একাউন্টেন্টমানসিক দক্ষতা(IQ)গাণিতিক সমস্যাIQ-4 (Topic Practice)ডাক জীবন বীমা, পূর্বাঞ্চল, ঢাকা,পিএলআই একাউন্টেন্ট - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
B.
৩০
Explanation:
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