গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৯০২১–১৯০৪০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The average score of a class of boys and girls in an examination is A. The ratio of boys and girls in the class is 3:1. If the average score of the boys is A + 1, the average score of the girls is - MCQ
- The sum of the ages of a daughter and mother is 56 years; after four years the age of the mother will be three times that of the daughter. What is the age of the daughter and the mother respectively? MCQ
- After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. What is the difference between the ages of the replaced and the new member? MCQ
- The ratio between the ages of Mobin and Xami is 4:5 and that between the ages of Mobin and Faisal is 5:6. If the sum of the ages of the three is 69 years, what is Xami’s age? MCQ
- The total marks obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained in Chemistry. What are the average marks obtained by him in Physics and Mathematics together? MCQ
- While calculating the average of a batsman as 36 in 100 matches that he played, one of the scores 90 was incorrectly noted as 40. The percentage error is - MCQ
- 4 years ago, the ratio of 1/2 of A’s age that time and four times of B’s age at the time were 5:12. Eight years hence, 1/2 of A’s age at that time will be less than B’s age at that time by 2 years. What is B’s present age? MCQ
- The ages of A and B are in the ratio 6:5 and the sum of their ages is 44 years. What will be the ratio of their ages after 8 years? MCQ
- 2 + 22 + 23 + ... + 29 = ? MCQ
- Find the greatest number of five digits which is divisible by 15, 21 and 36: MCQ
- The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1: 2? MCQ
- If n is a positive integer and (n +1)(n +3) is odd, then (n + 2)(n + 4) must be a multiple of which one of the following? MCQ
- What is the least number which when divided by the numbers 3, 5, 6, 8, 10 and 12 leaves in each case a reminder 2 but when divided by 13 leaves no remainder? MCQ
- Sum of a rational number and its reciprocal is 13/6. Find the number - MCQ
- How many terms are there in 2, 4, 8, 16,....,1024. MCQ
- If n is an integer, which of the following cannot be an integer? MCQ
- A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as remainder. The number is: MCQ
- The sum of two numbers is 528 and their H.C.F. is 33. The number of pairs of numbers satisfying the above conditions is: MCQ
- How many zeros will be required to number the pages of a book containing 1000 pages? MCQ
- The ratio of two numbers is 3: 4 and their LCM is 120. The sum of numbers is - MCQ