দুইটি সন্নিহিত কোণের সমষ্টি ২ সমকোণ হলে একটিকে অপরটির কী বলে?

Created: 8 months ago | Updated: 1 month ago
Job Solution Islami Bank Bangladesh Ltd (IBBL) Islami Bank Ltd || Field Officer (01-03-2024) গণিত
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In a division sum , the remainder is zero . A student mistook the divisor by 12 instead of 21 and obtained 35 as quotient. What is the correct quotient ?

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A picture is copied onto a sheet of paper, which measures 8.5 inches by 10 inches. A border of 1.5 inch is left all around. What is the area , in squar inches , covered by yhe picture ?

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Three pipes P,Q and R can fill a tank in 6 hours. After working all three together for 2 hours. R is closed and P and Q can fill the remaining part in 7 hours . The number of hours taken by R alone fill the thank is --

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