CAT Quantitative Ability Questions | CAT Algebra questions

Comprehension

Directions for Questions: These questions are based on the situation given below :

There are fifty integers a1 , a2 , ....... a50, not all of them necessarily different. Let the greatest integer of these fifty integers be referred to as G, and the smallest integer be referred to as L. The integers a1 through a24 form sequence S1, and the rest form sequence S2. Each member of S1 is less than or equal to each member of S2.

CAT/1999

Question . 177

Elements of S1 are in ascending order, and those of S2 are in descending order. a24 and a25 are interchanged then which of the following statements is true

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Explanatory Answer

Method of solving this CAT Quantitative Ability Question from Algebra question

S1 = a1 , a2 , ..........a24 S2 = a25................a50 And we also know that L which is the least number has to be in S1 and G which is the greatest number must be in S

(a) With the interchanging of a24 and a25 still the sequence of S1 will be in ascending order because each term of S2 is either greater than or equal to each term of S1