Question
I. 35x² - 24x – 35 = 0 II. 72y² -
145y + 72 = 0 In the following questions, two equations numbered I and II are given. You have to solve both the equations and give answer.Solution
I. 35x² - 24x – 35 = 0 35x² + 25x - 49x – 35 = 0 5x(7x + 5) – 7(7x + 5) = 0 (5 x – 7) (7 x + 5) = 0 ∴ x = 7/5, -5/7 II. 72y² - 145y + 72 = 0 72y² - 64y - 81y + 72 = 0 8y(9y – 8) - 9(9y – 8) = 0 (8y – 9) (9y – 8) = 0 ∴ y = 9/8, 8/9 Hence, relationship cannot be established between x and y.
If ‘X’ is related to ‘W’ and ‘T’ is related to ‘S’ in a certain way, then ‘U’ is related to which of the following?
...How many persons sit between Y and the one who faces R?
How is U related to T?
Who sits opposite to F?
Five friends, P, Q, R, S and T are sitting in a row facing south. Q is sitting in the centre position. P is sitting at the west end. T and R are sitting...
How many persons are older than S?
If T sits third to the right of K then how many persons are sitting between T and N?
Who among the following person sits 2nd to the right of the one who sits opposite to S?
Who sits opposite to A?
How many persons sit between D and B, when counted from the left of D?
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