গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৫৮৮১–১৫৯০০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- In a class, 30 students play basketball, 20 students play volleyball, and 8 students play both. 12 students play neither basketball nor volleyball. What is the total number of students in the class?
MCQ - If p and q are the roots of the equation 3x2 − 7x + 2 = 0, then what is the value of (1/p) + (1/q)? MCQ
- If x = 2 + √3 and y = 2 - √3, find the value of (x2 + y2)2 MCQ
- Nine times a whole number is equal to five less than twice the square of the number. Find the number? MCQ
- If x2 - 3x + 1 = 0, and x > 1, then what is the value of x - (1/x)? MCQ
- If dividing P(x) = 4x3 - 7x2 + bx - 5 by (x - 3) results the remainder 10, then find the value of b. MCQ
- If a + 1/a = √3, then what is the value of a30 + a24 + a6 + 1?
MCQ - Find the product of two consecutive numbers if three times the first number is 5 more than twice the second number.
MCQ - What should be the value of "P" so that the expression (9 − 12x + Px2) becomes a perfect square?
MCQ - If (x + 5)2 = 64, which of the following can be the value of (x + 2)? MCQ
- If x2 + yz + zx + xy is divided by x + y, the result is-
MCQ - If one root of x2 - (q + 2)x + 15 = 0 is 3, then the value of q is: MCQ
- If a3 - b3 = 117 and a - b = 3 What is the value of ab? MCQ
- What is the length of a train that takes 15 seconds to pass a pole when it runs at a speed of 54 km/h? MCQ
- A reservoir can be filled in 4 hours by three taps, P, Q, and R. Tap R is three times as fast as Q, and tap Q is twice as fast as P. How long will tap Q alone take to fill the reservoir? MCQ
- The average speed of a car is one-third the speed of an express train. The train covers 1800 km in 15 hours. How much distance will the car cover in 36 minutes? MCQ
- A tap can fill a cistern in 8 hours. Due to a drain pipe in the bottom, it takes 10 hours to fill the same cistern. If the cistern is full, how much time will the drain pipe take to empty it? MCQ
- A train of 180 m long is moving at 72 km/h. The time taken by the train to cross a tunnel of 420 m long is- MCQ
- Three pipes A, B, and C can fill a tank in 5, 10, and 30 hours respectively. Pipe A was opened at 8 a.m., Pipe B at 9 a.m., and Pipe C at 10 a.m. When will the tank be completely full? MCQ
- A cyclist covers 15 rounds of a circular track of 400 meters every day. The time taken by the cyclist for three consecutive days are 75, 85, and 80 minutes respectively. On an average, what is the speed of the cyclist in meters/minute? MCQ