Question
Solve the quadratic equations and determine the relation
between x and y: Equation 1: x² - 41x + 400 = 0 Equation 2: y² - 41y + 420 = 0Solution
From Equation 1: x² - 41x + 400 = 0 Factorizing: (x - 16)(x - 25) = 0 So, x = 16 or x = 25. From Equation 2: y² - 41y + 420 = 0 Factorizing: (y - 20)(y - 21) = 0 So, y = 20 or y = 21. Comparing x and y: x = 16, y = 20, x < y       x = 16, y = 21, x < y x = 25, y = 20, x > y x = 25, y = 21, x > y
60   61    57   66    ?      75    39
...15   8   9   15   32    ?    250.5
What will come in place of the question mark (?) in the following series?
4000, ?, 320, 192, 153.6, 153.6
- What will come in place of the question mark (?) in the following series?
121, 115, 102, 82, 55, ? 10Â Â Â 11Â Â Â Â 12Â Â Â Â 20Â Â Â Â 24Â Â Â Â ?
23Â Â Â Â 40Â Â Â Â Â Â 67 Â Â Â Â Â Â 104Â Â Â Â Â Â ? Â Â Â Â Â Â 208
...64, 65, 73, 100, ?, 289
12, 19, 33, ?, 117
312, 302, 282, ?, 212, 162
252, 235, 220, 207, 196, ?
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