গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৭৬৬১–১৭৬৮০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- If the average of 5, 11, 18, and 'x' is 14, what is the value of 'x'? MCQ
- Find the average of all prime numbers between 20 and 50? MCQ
- Find out the geometric mean of '3, 25, and 45'. MCQ
- The average of 20 numbers is 40. If the numbers 30 and 50 are discarded, then the average of the remaining numbers is - MCQ
- A is 60 years old and B is 40 years old. How many years ago was the ratio of their ages 5 : 3? MCQ
- The sum of the ages of 5 children is 50 years. Each children born at the intervals of 3 years. What is the difference between the eldest and the youngest child's age? MCQ
- The sum of the ages of a man and his son is 45 years. Five years ago, the product of their age was 34. What is the age of the son? MCQ
- The ratio of Rifat and Rafat's ages is 4 : 3. Rifat will be 30 years old after 6 years. How old is Rafat now? MCQ
- The ratio of the ages of father and son now is 6 : 1. After 5 years the ratio will become 7 : 2. What is the sum of their ages now? MCQ
- The average of 7 consecutive odd numbers is 33. What is the average of the first and last numbers? MCQ
- The average of ten numbers is 8. If each number is multiplied by 10, what is the new average? MCQ
- The Average age of 20 students and a teacher is 15 years. When the teacher's age is excluded, the average decreases by 1. What is the age of the teacher? MCQ
- What is the average of the sum of the first 20 natural numbers? MCQ
- The average of 80 numbers is 42. When 5 more numbers are included, the average of 85 numbers becomes 45. Find the average of 5 numbers. MCQ
- A is two years older than B who is twice as old as C. If the total ages of A, B, and C is 27, how old is C? MCQ
- What is the average of 12, 22, 32, 42, 52, 62, 72?
MCQ - The average of two numbers is Q. If one number is P, then the other is - MCQ
- In seven given numbers, the average of the first four numbers is 4 and the last four numbers is also 4. If the average of these given seven numbers is 3, the fourth number is - MCQ
- The average age of three boys is 20 years and their age ratio is 4 : 5 : 6. What is the age of the youngest boy? MCQ
- A passenger travels from Dhaka to Cumilla at a speed of 30 kmph and returns with a speed of 60 kmph. What is the average speed? MCQ