Question
I. 3p² - 11p + 10 = 0 II. 2q² + 13q +
21 = 0 In each of these questions two equations numbered I and II are given. You have to solve both the equations and give answer, if –Solution
I. 3p² - 11p + 10 = 0 3p² - 6p - 5p + 10 = 0 ⟹ 3p (p - 2) - 5 (p - 2) = 0 ⟹ (3p - 5) (p - 2)= 0 ⟹ p = 5/3, 2 II. 2q² + 13q + 21 = 0 ⟹ 2q² + 7q + 6q + 21 =0 ⟹q(2q + 7) + 3(2q + 7)= 0 ⟹ (2q + 7) (q + 3)= 0 ⟹ q = -7/2 , - 3 ∴ p > q.
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ANTONYMS
1.
Select the number that can replace the question mark (?) in the following series.
43, 31, 74, 105, 179, ?
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473, 517, 561, ?, 649, 693
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