গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮২৪১–১৮২৬০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The average of x and y is 7, and z = 3x + 2. What is the average of y and z? MCQ
- The average of a, b, c is 6 and a - b = 4, ab = 21, what is the value of c? MCQ
- The average of 10 integers is 16. If the sum of 6 of them is 100. What is the average of other 4? MCQ
- The average of 5 consecutive integers starting with m as the first integer is n. What is the value of n? MCQ
- Six times the average of six consecutive even integers is 18 more than the four times the largest integer. What is the average of the consecutive integers? MCQ
- The average age of a group of 10 students was 20 years. The average age increased by 2 years when two new students joined the group. What is the average age of the two new students who joined the group? MCQ
- The average age of the 20 persons is 19.2 years. After some time two more persons join them and then average is increased by 0.3 years. Find the difference between the age of new persons. MCQ
- The average age of girls in a nursery class is 5 years and that of boys is 5.7 years. If the average age of the students in the class is 5.5 years, what could be the possible number of boys and girls respectively in the class? MCQ
- The average age of A and B is 6 years more than the average age of B and C. C is how many years younger than A? MCQ
- The average age of A, B and C is 30 years. If the difference between B's age and A's age is same as the difference between C's age and B's age. If D is 40 years older than B then what is the sum of the age of B and D? MCQ
- The average age of any and Any's twin two sisters is 8 years. The age of each of twin two sisters is 6 years. What is the any's age? MCQ
- The average age of father and son is 30 years. After 6 years, the ratio of the age of them is 5 : 1. The present age of son is MCQ
- The sum of five consecutive odd numbers is 260 more than the average of the numbers. What is the smallest number? MCQ
- If the average of 5 consecutive integers is 19 than what is the difference between the least and the greatest of the 5 integers? MCQ
- 10 years ago, P was half of Q in age. If the ratio of their present age is 3 : 4. What will be the average present age of them? MCQ
- Present ages of Asim and Nabil are in the ratio of 5 : 4 respectively. Three years after, the ratio of their ages will become 11 : 9 respectively. What is Nabil's present age in years? MCQ
- 10 years ago, the age of father was thrice the age of his son. Ten years after, the father's age will be twice that of his son. The ratio of their present ages is? MCQ
- The sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be: MCQ
- A is younger than B by 7 years. If their ages are in the respective ratio of 7 : 9, how old is A? MCQ
- The present ages of three persons in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years). MCQ