# quant

561 total views

561 total views Previous QuestionNext Question If , then find . a.1 b.2 c.3 d. 4 [CAT, 2009] Solution: Algebraic Identities: Firstly we will do cross multiplication. Note: When we multiply a number ‘a’ by 1, we again get that number because 1 is called the Multiplicative Identity in mathematics. Ex: 2×1=2, we get […]

1,116 total views

1,116 total views Previous QuestionNext Question What is the remainder when is divided by 4? a.0 b.1 c.2 d. None of these [CAT, 2008] Solution:Remainder finding:The laws of exponents:According to the laws of exponents when the powers are the same, bases are added/subtracted.am+bm = a+bmam-bm= a-bm If the numbers are in multiplication with the same bases then;am×bm = […]

3,089 total views

3,089 total views Previous QuestionNext Question The number of common terms in the two sequences 17, 21, 25, …, 417 and 16, 21, 26, …, 466 is a. 19 b.20 c.77 d.78 [CAT, 2008] Solution: Arithmetic Sequence /Arithmetic Progression (A.P) Firstly understand that a sequence is a list of numbers that […]

7,301 total views

7,301 total views Previous QuestionNext Question If sum of the first 11 terms of arithmetic progression equals that of the first 19 terms, then what is the sum of the first 30 terms? [CAT, 2004]a. 0 b. -1 c.1 d. Not Unique Solution: Arithmetic Sequence or Arithmetic Progression (A.P) Firstly understand that a sequence is […]

5,028 total views

5,028 total views Previous QuestionNext Question Three consecutive positive even numbers are such that thrice the first number exceeds double the third by 2, then the third number is [1995].a. 10b. 14c. 16d. 12 Solution: Consecutive numbers mean that the numbers are coming back to back. Ex: 1, 2, 3, 4, 5,….. But the question is saying […]