গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৭১৬১–১৭১৮০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- How many 4-digit numbers can be formed from the digits 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated? MCQ
- An amount of Tk 10000 becomes Tk 11025 in 1 year if the interest is compounded half-yearly. What is the rate of compound interest per annum? MCQ
- In how many ways can six different rings be worn on four fingers of one hand? MCQ
- 100 taka is doubled in 5 years when compounded annually. How many more years will it take to get another 200 taka compound interest- MCQ
- In how many different ways can the letters of the word 'WATER' be arranged? MCQ
- If a certain coin is flipped, the probability that the coin will land heads is 1/2. If the coin is flipped 3 times, what is the probability that it will land heads up on the first 2 flips and not on the last flip? MCQ
- A question paper has two parts, A and B, each containing 5 questions. If a student has to choose 3 from part A and 2 from part B, in how many ways can he choose the questions? MCQ
- A box contains 5 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one white ball is to be included in the draw? MCQ
- Compound interest on a certain sum for 2 years at 10% per annum is Tk. 420. What would be the simple interest at the same rate and for the same time? MCQ
- In a lottery, there are 10 prizes and 15 blanks. A lottery is drawn at random. What is the probability of getting a prize? MCQ
- There are 5 non-collinear points. How many triangles can be drawn by joining these points? MCQ
- If the probability of rain on any given day in City Dhaka is 50 percent, what is the probability that it rains on exactly 2 days in a 4-day period? MCQ
- An integer n between 1 and 100, inclusive, is to be chosen at random. What is the probability that n(n + 1) will be divisible by 5? MCQ
- In how many ways can a cricket eleven be chosen out of 13 players? MCQ
- Five persons, Shahin, Masud, Jayed, Raj, and Alom, sit randomly in five chairs in a row. What is the probability that Raj and Masud sit next to each other? MCQ
- In how many ways 5 students can be chosen from the class of 10 students? MCQ
- The ratio of red balls, to yellow balls, to green balls in a basket is 2 : 3 : 4. What is the probability that a ball chosen at random from the basket is a yellow ball? MCQ
- A prize of 2000 tk is given to anyone who solves a hacker puzzle independently. The probability that Rafi will win the prize is 0.6, and the probability that kamol will win the prize is 0.7. What is the probability that both will win the prize? MCQ
- Find the number of triangles which can be formed by joining the angular points of a polygon of 5 sides as vertices. MCQ
- In a survey among the readers of newspapers, it was found that 65 persons read the Prothom Alo, 40 persons read the Bhorer Kagoj, 45 read the Janakantho, 52 read the Jugantor. If one person is chosen at random from the readers, what is the probability that the person doesn't read the Jugantor? MCQ