Question
I. 6x² - 23x + 7 = 0 II. 6y² - 29y + 9
= 0Solution
I. 6x² - 23x + 7 = 0 6x² - 2 x - 21x + 7 = 0 2 x(3 x – 1) – 7(3x – 1) = 0 (2 x – 7) (3 x – 1) = 0 x = 7/2 , 1/3 II. 6y² - 29y + 9 = 0 6y² - 27y - 2 y + 9 = 0 3 y(2 y – 9) – 1(2 y – 9) = 0 (3 y – 1) (2 y – 9) = 0 y = 9/2 , 1/3 Hence, no relationship can be established between x and y.
2807, 1400, 697, 346, 171, 84, 41, ?
1, 6, 27, 124, ?, 3906, 27391
...5, 23, 18, 36, 31, ?
124, 128, ?, 135, 110, 146
12, 25, 51, ?, 207, 415Â
28, 43, 73, 118, ?, 253
37, 49, 63, ?, 97, 117
What will come in place of the question mark (?) in the following series?
24, 8, 15, ?, 12, 4
16.12 × 15.94 + 654.92 – 344.83 = ?× 5.95
What will come in place of the question mark (?) in the following series?
555, 430, ?, -320, -1320, -3320Â