Question
Select the letter cluster which does not belong to the
same group from the given alternatives.Solution
The pattern followed here is: The 2nd letter is the immediate succeeding letter of the 1st letter and the 3rd letter is the 4th succeeding letter of the 2nd letter as per the English alphabetical series. OPT → O + 1 = P, P + 4 = T HIM → H + 1 = I, I + 4 = M LMQ → L + 1 = M, M + 4 = Q ABF → A + 1 = B, B + 4 = F JKP → J + 1 = K, K + 4 = O ≠P
I. 15y2 + 26y + 8 = 0
II. 20x2 + 7x – 6 = 0
I. x2 – 10x + 21 = 0
II. y2 + 11y + 28 = 0
- If the quadratic equation x² + 18x + n = 0 has real and equal roots, what is the value of n?
I. 35x² - 24x – 35 = 0
II. 72y² - 145y + 72 = 0
I. 2x2 – 5x – 12 = 0
II. 2y2 + 13y + 20 = 0
I. 22x² - 97x + 105 = 0
II. 35y² - 61y + 24 = 0
I. 4x2 + 3√7 x-7 =0
II. 7y2 + 4√7 y-5=0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 11x² - 93x + 88 = 0
Equation 2: 13y² + 118y + 93 = 0
I. 5x² - 28x + 39 = 0
II. 2y² - 13y + 20 = 0
I. 4x2 + 9x - 9 = 0
II. 4y2 - 19y + 12 = 0
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