Question
I. 7x² + 27x + 18 = 0 II. 19y² - 27y + 8 =
0 In the following questions two equations numbered I and II are given. You have to solve both the equations. Give answer if;Solution
I. 7x² + 27x + 18 = 0 7x² + 21x + 6 x + 18 = 0 7x(x + 3) + 6 (x + 3) = 0 (7x + 6) (x + 3) = 0 x = -6/7 , - 3 II. 19y² - 27y + 8 = 0 19y² - 19y - 8 y + 8 = 0 19y(y – 1) – 8(y – 1) = 0 (y – 1)(19 y – 8) = 0 y = 1, 8/19 Hence, x < yÂ
What will come in place of the question mark (?) in the following series?
48, 291, ?, 399, 408, 411
18, 30, 50, 102, 282, ?
- What will come in place of the question mark (?) in the following series?
24, 27, 34, 46, 64, ? 150 Â Â Â 15Â Â Â 3Â Â Â ? Â Â Â Â 0.36Â Â Â Â 0.18
13, 28, ?, 118, 238, 478
3   2    10   ?   17   16
32, 64, 8, ?, 2, 4Â
8, 9, 125, ?, 1331, 169Â
226  231   466  ?  5606  28031    Â
 5, 6, 14, 45, 184, ? Â