গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
৩৩৪১–৩৩৬০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- If α, β are the roots of the equation x2 - 4x - 5 = 0 then α2 + β2 equals to: MCQ
- If x/y = 1/3, then (x2 + y2)/(x2 - y2) = ? MCQ
- If 4x + 6y = 130 and 2x/3y = 4/9, then y - x =? MCQ
- (a2 - b2 - 2bc - c2)/(a2 + b2 + 2ab - c2) is equivalent to? MCQ
- If x2 + y2 = 25 and xy = 12, what is the value of (x - y)2? MCQ
- If a - b = 1, then the value of a3 - b3 - 3ab will be? MCQ
- If x - y = 1 and x2 + y2 = 41, then the value of x + y will be? MCQ
- If a + b + c = 13 and a2 + b2 + c2 = 69, then what is the value of ab + bc + ca? MCQ
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. MCQ - (p2 - 7p + 10)/(p2 - 8p + 15) = ? MCQ
- If x + (2/x) = 4, what is the value of x3 + (8/x3)? MCQ
- If x = 1 + √2 and y = 1 - √2, find the value of (x2 + y2)2. MCQ
- If x2 - √5x + 1 = 0, and x > 1, then what is the value of x - (1/x)? MCQ
- If a + 1/a = √3, then what is the value of a30 + a24 + a6 + 1? MCQ
- The sum of the squares of three numbers is 123, and the sum of their products taken two at a time is 119. What is the sum of the three numbers? MCQ
- If x = 7 - 4√3, then
MCQ - Two pipes A and B can fill the tank in 40 and 60 minutes, respectively. Both the pipes are opened together. After how many minutes should the pipe B be turned off, so that the tank be fill in 30 minutes? MCQ
- One pipe can fill a tank four times as fast as another pipe. If together the two pipes can fill the tank in 30 minutes, then the slower pipe alone will be able to fill the tank in? MCQ
- A tap can fill a tank in 10 hrs. After half the tank is filled, four more similar taps are opened. What is the total time taken to fill the tank completely? MCQ
- Three pipes A, B and C can fill a tank in 8 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 9 hours. The number of hours taken by C alone to fill the tank is? MCQ