গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৬৭০১–১৬৭২০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- If p(x) = 3x4 - 2x2 + x - 1, q(x) = 7x5 + 2x2, then find the value of p(x) + q(x). MCQ
- If (x - y)2 = 12 and xy = 1, then what is the value of (x2 + y2)? MCQ
- If 3x + 2y = 8 and 2x - y = 3, find the value of 4y - 3x. MCQ
- Which of the following equations is not equivalent to 25x2 = y2 - 4. MCQ
- Find the remainder when p(x) = x4 - 3x2 - 10x + 2 is divided by (x - 3). MCQ
- What are the roots of the equation √(2x + 9) = 13 - x? MCQ
- If x2 - 4x + 3 = 0, then what is the value of (x - 2)2? MCQ
- Rafiul has more marbles than Roman and they have 45 marbles together. After losing 5 marbles each, the product of the number of marbles they both have now is 124. How to find out how many marbles they had to start with. MCQ
- If a + b + c = 0, the value of a2/(bc) + b2/(ca) + c2/(ab) is- MCQ
- If a2 + b2 = 45 and ab = 18, find the value of (1/a) + (1/b). MCQ
- The polynomial p(x) = x5 - 7x3 + ax + 1 has remainder 13 after division by x - 1. Find the value of the coefficient a. MCQ
- A person crosses a 600 m long street in 5 minutes, What is his speed in km per hour? MCQ
- Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes, pipe A is turned off. What is the total time required to fill the tank? MCQ
- Two trains A and B start simultaneously in the opposite direction from two points P and Q and arrive at their destinations 16 and 9 hours respectively after their meeting each other. At what speed does the second train B travel if the first train travels at 120 km/h? MCQ
- How long will a boy take to run round a square field of side 40 meters, If he runs at the rate of 9 km/hr? MCQ
- The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 kms in 4 hours, then the speed of the first train is? MCQ
- A water tank is two-fifth full. Pipe A can fill a tank in 10 minutes and pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely? MCQ
- A man reaches his office 20 min late, if he walks from his home at 3 km per hour and reaches 30 min early if he walks 4 km per hour. How far is his office from his house? MCQ
- A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. The length of the bridge (in metres) is- MCQ
- If Deep had walked 20 km/h faster he would have saved 1 hour in the distance of 600km. What is the usual speed of Deep? MCQ