8. If x² + 4x + 4 = 0

   then ( x + 2 )² = 0

   i.e. x + 2 = 0

   i.e. x = -2

   

   Canceling the common terms x² + 9

   6x                                             -6x

   6(-2)                                        -6 (-2)

   -12                                          12

   Hence B.

9. ( 1.1 )"                                    ( 0.89 )⁸⁹

   When any number greater than one, is raised to any positive integral power, its value increases whereas any number less than one raised to a similar power decreases. 1.1³ > 1.12 > 1.1 but (0.89)³ < (0.89)² < 0.89

   Hence A.

10. 12x + 4y = 8

    Multiplying the whole equation by

    

    9x + 3y = 6

    Hence C.

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Index

Test 3
Section 1 : Verbal Section
Section 2 : Quantitative Section
Section 3 : Analytical Section
Section 4 : Quantitative Section
Section 5 : Verbal Section
Section 6 : Analytical Section
Section 7 : Quantitative Section
Answer key to Test 3