Question
I. 2x² - 15x + 27 = 0 II. 2y² - 13y +
20 = 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. 2x² - 15x + 27 = 0 2x² - 6 x – 9 x + 27 = 0 2x(x – 3) - 9(x – 3) = 0 (2x – 9) (x – 3) = 0 ∴x = 9/2 , 3 II. 2y² - 13y + 20 = 0 2y² - 8y – 5y + 20 = 0 2y (y – 4)- 5( y – 4) = 0 (2 y – 5) (y -4) ∴y = 5/2 , 4 Hence no relationship can be established.
30, 42, 48, 54, 65, 81, 126
The following numbers follow a certain pattern. Identify the odd one out.
9, 25, 65, 191, 569, 1703
- Find the wrong number in the given number series.
3, 6, 10, 15, 21, 29 In each of the following number series, one term is wrong. Find the wrong term.
4, 10, 22, 46, 94, 188
120, 140, 178, 232, 300, 360
Direction: Find the wrong number in given number series.
1977, 1945, 1837, 1575, 1081, 217.
Find the wrong number in the given number series.
121, 132, 145, 160, 181, 204
- Find the wrong number in the given number series.
310, 259, 208, 167, 128, 115 Find the wrong number in the given number series.
11, 20, 38, 78, 154, 31010 3 7 6 40 310
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