Question
Seven persons A, B, C, D, E, F and G are attending the
interview on six different days starting from Monday to Sunday in a week but not necessarily in the same order. Who among the following persons attend the interview on Wednesday? I. Three persons attend the interview between C and G. C attends the interview immediately after E. II. A attends the interview on Friday. One person attends the interview between A and D III. As many person sits above F and below F are same. D and F are immediate neighbours. Each of the questions below consists of a question and three statements numbered I, II and III given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read the question and all three statements and give answer accordingly.Solution
On combining all the statements we get,
I. x² + 11x + 24 = 0
II. y² + 17y + 72 = 0
(i) x² – 3x – 40 = 0
(ii) y² + 11y + 30 = 0
I. 4x2 + 25x + 36 =0
II. 2y2 + 5y + 3 = 0
l. p2Â - 3p - 54 = 0
II. q2Â - 19q + 90 = 0
Solve: x² − 7x + 12 = 0
(i) 2x² – x – 3 = 0
(ii) 2y² – 6y + 4 = 0
The nth term of a sequence is n² + 3n + 1. Find the difference between the 20th and 10th terms.
I. 2y2Â + 31y + 99 = 0
II. 4x2 + 8x – 45 = 0
In each of these questions, two equations (I) and (II) are given.You have to solve both the equations and give answer Â
I. 7x² - 19x + 10 = 0...
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 32x + 207 = 0
Equation 2: y² - 51y + 648 = 0