গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৭১৮১–১৭২০০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- In a party every person shakes hands with every other person. If there are 55 hands shakes, find the number of person in the party. MCQ
- If the probability that Mokhles will miss at least one of the ten jobs assigned to him is 0.55, then what is the probability that he will do all ten jobs? MCQ
- If, 4 × nP3 = 3 × (n + 1)P3, what is the value of n? MCQ
- A meeting is attended by 750 students. 450 of the students are females. Half the female students are less than thirty years old, and one-fourth of the male students are less than thirty years old. If one of the students of the meeting is selected at random to receive a prize, what is the probability that the person selected is not less than thirty years old? MCQ
- Two cards are drawn from a pack of 52 cards.What is the probability that both are red cards? MCQ
- In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one girl should be there? MCQ
- Which number is 40% less than 90? MCQ
- By selling 90 mangoes for Tk.160 a person loses 20%. What is the cost price of nine mangoes? MCQ
- The marked price of a water cooler is Tk.4650. The shopkeeper offers an off-season discount of 18% on it. What is its selling price? MCQ
- The sum of three numbers is 98. If the ratio of the first to second is 2 : 3 and that of the second to the third is 5 : 8, then the second number is- MCQ
- Three partners A, B and C invest Tk.1500, Tk.1200, and Tk.1800 respectively in a company and make a profit of Tk.900. What is the amount of profit of C? MCQ
- A grocer wishes to sell a mixture of two variety of pulses worth Tk.16 per KG. In what ratio must he mix the pulses to reach this selling price, when cost of one variety of pulses is Tk.14 per KG and the other is Tk.24 per KG? MCQ
- To complete a piece of work, Hasib takes 6 days and Tanveer takes 8 days alone respectively. Hasib and Tanveer took Tk.2400 to do this work. When Hamza joined them, the work was done in 3 days. What amount was paid to Hamza? MCQ
- Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes? MCQ
- A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had how many apples? MCQ
- Harun sells a book to Kabil at a profit of 15%, Kabil sells that book to Rasel for Tk.1012 and makes a profit of 10%. At what cost did Harun purchase the book? MCQ
- Find the rate of discount being given on a shirt whose selling price is Tk.546 after deducting a discount of Tk.104 on its marked price. MCQ
- The monthly incomes of A and B are in the ratio 4 : 3. Each saves Tk.600. If their expenditures are in the ratio 3 : 2, then what is the monthly income of A? MCQ
- Cost of two types of dates is Tk.15 and Tk. 20 per KG, respectively. If both the dates are mixed together in the ratio 2 : 3, then what should be the price with Tk. 2 profit of mixed variety of dates per KG? MCQ
- Zinnu completed the school project in 20 days. How many days will Ali take to complete the same work if he is 25% more efficient than Zinnu? MCQ