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Section 4 : Mathematical Reasoning

Part I : Quantitative Comparison Questions

  1. Product of any number with zero is 0

    Ans : C

  2. 4 - 5 < c - d < 10 - 7

    -1 < c - d < 3

    3 > c - d

    Ans : A

  3. Prime numbers are 2, 3, 5, 7, 11, 13, 17 and ... so on.
    b could be any of the above prime numbers.
    Given a = 7x - 2 where 7x is a multiple of 7.
    The relationship cannot be determined from the given data.

    Ans : D

  4. In the given right angled triangle, (hypotenuse)2 = The sum of the squares of the other 2 sides.

    (12 Ö 2 )2 = 122 + ?2

    288 = 144 + ?2

    \ ?2 = 144

    \ ? = 12

    Since this is an isosceles right triangle, a = 45

    Ans : C

  5. Given t ¹0
    then there are two possibilities: i) Either t > 0 or ii) t < 0.

    If t > 0, suppose t = 3.
    Then t2 + 2t = 8,
    and t2 - 2t = 0.

    In this case, LHS > RHS.

    If t < 0, suppose t = -1.
    Then t2 + 2t = -1,
    and t2 - 2t = 3

    In this case, LHS < RHS.

    This means that from the given information we cannot determine the relationship between the two columns. Hence the choice is D.

    Ans : D

  6. 2h = 2 p r

       r = 2h
            2p

       r = h / p

    2 l = 2 r

       r = l

    8 l = 8 r

    2h = 2 ´ r p

    2h = 6.28 r

    8 l > 2 h

    Ans : A

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Index

PART IV

Drill :

Section 1 : Verbal Reasoning
Section 2 : Mathematical Reasoning
Section 3 : Verbal Reasoning
Section 4 : Mathematical Reasoning
Section 5 : Reading Comprehension
Section 6 : Mathematical Reasoning
Section 7 : Verbal Reasoning

Answer Explanation To The Drill
Section 1 : Verbal Reasoning
Section 2 : Mathematical Reasoning
Section 3 : Verbal Reasoning
Section 4 : Mathematical Reasoning
Section 5 : Reading Comprehension
Section 6 : Mathematical Reasoning
Section 7 : Verbal Reasoning

Test 1

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