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A person has TK. 950 in 29 notes consisting of TK. 500,100, 50 and 10. How many notes should at least be in TK. 50 ?

A person has TK. 950 in 29 notes consisting of TK. 500,100, 50 and 10. How many notes should at least be in TK. 50 ? Correct Answer 2

নল তিনটি দিয়ে ১ ঘন্টায় পুর্ণ হয় = (১/১০ + ১/১২ + ১/১৫) = ১৫/৬০ = ১/৪ অংশ ১/৪ অংশ পূর্ণ হয় ১ ঘন্টায় ১ (সম্পূর্ণ) অংশ পূর্ণ হয় ৪ ঘন্টায় ১/২ অংশ পূর্ণ হয় (৪/২) = ২ ঘন্টায়

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