গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৬৯০১–১৬৯২০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The sum of the ages of X, Y, and Z is 120 years. Ten years ago, the ratio of their ages was 2 : 3 : 4. What is the present age of Y? MCQ
- The average of six numbers is p and the average of three of these is q. If the average of the remaining three is r, then which one is correct? MCQ
- Five years ago, the average age of A and B was 18 years. At present the average age of A, B, and C is 24 years. What would be the age of C after 5 years? MCQ
- The average age of 9 students and their teacher is 16 years. The average age of the first four students is 19 years and that of the last five is 10 years. The teacher's age is - MCQ
- The sum of the ages of a daughter and her mother is 56 years. After 4 years, the age of the mother will be three times that of the daughter. At present their ages are? MCQ
- Out of 9 persons, 8 persons spent Tk. 30 each for their meals. The ninth one spent Tk. 20 more than the average expenditure of all the nine. The total money spent by all of them was- MCQ
- The average mark obtained by 22 candidates in an examination is 43. The average marks of the first ten are 45 and the last eleven are 40. The number of marks obtained by the 11th candidate is- MCQ
- Asif got married 8 years ago. Today his age is 9/7 times his age at the time of his marriage. At present his daughter's age, is one-sixth of his age. What was his daughter's age 3 years ago? MCQ
- 13 chairs and 5 tables were bought for 8280. If the average cost of a table be Tk. 1227, what is the average cost of a chair? MCQ
- Tamim has a certain average for 9 innings. In the tenth innings, he scores 100 runs thereby increasing his average by 8 runs. His new average is: MCQ
- At present, the ratio between the ages of Hassan and Hossain is 4 : 3. After 6 years, Hassan's age will be 26 years. What is the age of Hossain at present? MCQ
- The average of 10 numbers is 40.2. Later it was found that two numbers had been wrongly added. The first one is 18 greater than the actual number and the second number added is 13 instead of 33. Find the correct average- MCQ
- A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B? MCQ
- If the mean of 5 observations x, x + 2, x + 4, x + 6, and x + 8 is 11, then the mean of the last three observations is - MCQ
- Shakib's bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and thereby decreases his average by 0.4. The number of wickets taken by him till the last match was - MCQ
- A father is twice as old as his daughter. If 20 years ago, the age of the father was 10 times the age of the daughter, what is the present age of the father? MCQ
- In a hostel, 52 students are living. If 18 students are joined in this hostel then the average expenditure will be 3 tk. less whenever the total expenditure is 510 tk. will be increased. What is the total expenditure initially? MCQ
- A person’s age is 3 times the age of his friend. The total of their ages is 64 years. How old is the person? MCQ
- On dividing a number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder? MCQ
- If 283P is divisible by 9, what is the value of P? MCQ