Question
I. 165x² + 97x + 10 = 0 II. 117y² - 163y + 56 =
0Solution
I. 165x² + 97x + 10 = 0 165x² + 75x + 22x + 10 = 0 11x (15x + 2) + 5(15x + 2) = 0 (11x + 5) (15x + 2) = 0 ∴ x = -5/11, -2/15 II. 117y² - 163y + 56 = 0 117y² - 72y  - 91y + 56 = 0 9y(13 y – 8) – 7(13 y – 8) = 0 (9y – 17) (13y – 8) = 0 ∴ y = 17/9, 8/13 Hence, ∴ x < yÂ
121Â Â Â Â Â 127Â Â Â Â Â Â 133Â Â Â Â Â Â 142Â Â Â Â Â Â 160Â Â Â Â Â Â 206
...- 72, 102, 148, 200, 272, 362
- Find the wrong number in the given number series.
13, 24, 17, 28, 21, 40 192Â Â Â 576Â Â Â 72Â Â Â 216Â Â Â 28Â Â Â 81
2824Â Â Â Â 2314Â Â Â Â Â 1973Â Â Â Â 1759Â Â Â Â 1634Â Â Â Â 1574
1600, 1604, 1544, 1760, 1248, 2248, 520
- Find the wrong number in the given number series.
350, 289, 238, 197, 158, 145 119, 200, 137, 182, 156, 164
1024Â Â 3072Â Â Â 384Â Â Â 1152Â Â Â 145Â Â Â 432
112, 130, 155, 196, 254, 342