Question
I. 2x2 – 25x + 33 = 0 II.
3y2 + 40y + 48 = 0Solution
I. 2x2 – 25x + 33 = 0 2x2 – 3 x – 22x + 33 = 0 x (2 x – 3) – 11(2 x – 3) = 0 (x – 11) (2 x – 3) = 0 x = 11, 3/2 II. 3y2 + 40y + 48 = 0 3y2 + 36y + 4 y + 48 = 0 3 y(y + 12) + 4(y + 12) = 0 (y + 12) (3 y + 4) = 0 y = – 12, -4/3 Hence, x > y
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
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