Question
I. 2x² - 12x + 16 = 0   II. 4y² - 8y -
12 = 0Â Â ÂSolution
I. 2x² - 12 x + 16 = 0   2x² - 8x - 4x + 16 = 0   2 x (x – 4) – 4 ( x – 4 ) (2 x – 4 ) (x – 4) x = 4, 2 II. 4y² - 8 y - 12 = 0   4y² - 12y + 4 y - 12 = 0   4 y (y – 3) + 4 ( y – 3 ) (4y + 4 ) (y – 3) y = - 1, 3 Hence relationship between x and y cannot be established.
254, ?, 1022, 1150, 1214, 1246
What will come in place of (?) Question mark in the given number series.
10, 15, 30, 75, 225, 787.5, ?
69, 35.5, 39.5, 68.25, 152.5, ?
166    156    136   ?     66    16
114, 146, 210, 306, 434, ?
- What will come in place of the question mark (?) in the following series?
1.36, 2.72, 5.44, 10.88, 21.76, ? The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
51    52    48     57    ?      66      30
...3   2   3   6   14    ?    115.5
What will come in place of the question mark (?) in the following series?
?, 65, 37, 73, 29, 81
