# previous years

3,868 total views

3,868 total views Previous QuestionNext Question If n=1+x, where x is the product of four consecutive positive integers, then which of the following is/are true? [CAT, 1999] A. N is odd B. n is prime C. n is a perfect square a. A and C only b. A and B only c. A […]

3,083 total views

3,083 total views Previous QuestionNext Question What is the digit in unit’s place of 251? [CAT, 1998]a. 2 b. 8 c. 1 d. 4 Solution: Although the problem of large exponents have been solved in many of the questions whose links can be found in this website, yet the exponent of 2 deserves a special attention. If the exponent […]

2,092 total views

2,092 total views Previous QuestionNext Question If n3 is odd, which of the following statements are true? [CAT, 1998] I. n is odd. II. n2 is odd. […]

2,373 total views, 2 views today

2,373 total views, 2 views today Previous QuestionNext Question What is a sequence? Define its all types through examples: Solution: The number of persons standing in a queue forms a sequence because each of them has a particular order. That is, the first person has the first order, the second one has […]

3,374 total views

3,374 total views Previous QuestionNext Question A student instead of finding the value of of a number, found the value of of the number. If his answer differed from the actual one by 770, find the number. [CAT, 1997] a. 1584 b. 2520 c. 1728 d. 1656 Solution: A student instead of […]

2,135 total views

2,135 total views Previous QuestionNext Question Find the smallest number which when increased by 5 is exactly divisible by 8, 11 and 24. [CAT, 1994] Solution: Suppose that the smallest number is X and we have to increase it by 5 i.e., we will add 5 to it. X+5, and it should be divisible by 8, 11 and 24. To […]

941 total views

941 total views Previous QuestionNext Question Arithmetic Progression or Arithmetic Sequence: Practical Examples (Type III and Type IV) Arithmetic Progression or Arithmetic Sequence with practical examples: Practical Examples of A.P type III and type IV Type III How many two digits number are divisible by 4? Solution: Note: A division is just the opposite of subtraction. If you divide 10/2 and get 5 as […]

1,305 total views

1,305 total views Previous QuestionNext Question Arithmetic Progression or Arithmetic Sequence: Practical Examples (Type I and Type II) Arithmetic Progression or Arithmetic Sequence with practical examples: Practical Examples of A.P (Type 1): If the 4th term of an A.P is 8 and the 7th term is 14, then find the three terms of this A.P. Solution: For the 4th term, we […]

2,236 total views

2,236 total views Previous QuestionNext Question Arithmetic Progression or Arithmetic Sequence Understanding Arithmetic Progression or Arithmetic Sequence with clarity: In Mathematics, a sequence is a list of ordered numbers. This means each number in this list has an order.Ex: 1, 2, 3…..N.1 is the first number; 2 is the second number; 3 is the third number. In other […]

1,411 total views

1,411 total views Previous QuestionNext Question How many integers, greater than 999 but not greater than 4000, can be formed with the digits 0, 1, 2, 3 and 4 if repetition of digits is allowed? [CAT, 2010]a. 499 b. 500 c. 375 d. 376 Solution: The Fundamental Principle of Counting or the Multiplication Principal : We will use […]