বন অধিদপ্তর || অফিস সহায়ক (22-10-2021) || 2021
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Created:
2 months ago
|
Updated:
2 days ago
Created:
2 months ago
|
Updated:
2 days ago
দেয়া আছে, পনির : তপন = ৪ : ৩ = ২০ : ১৫ [৫ দ্বারা গুণ করে]
এবং তপন : রবিন = ৫ : ৪ = ১৫ : ১২ [৩ দ্বারা গুণ করে]
অতএব, পনির : তপন : রবিন = ২০ : ১৫ : ১২ = ১২০ : ৯০ : ৭২ [৬ দ্বারা গুণ করে]
অর্থাৎ পনিরের আয় ১২০ টাকা হলে রবিনের আয় ৭২ টাকা।
Created:
2 months ago
|
Updated:
2 days ago
এখানে, 3ab + bc - 4ca - 5 - ( 2ab - 2bc-5ca - 6 )
=3ab+bc-4ca-5-2ab+2bc + 5ca + 6
= (ab + 3bc + ca + 1)
অর্থাৎ নির্ণেয় বিয়োগফল (ab +3bc + ca + 1).
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