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In each of these questions, one term in the given number series is wrong. Find out the wrong term.
5, 15, 81, 479, 3360, 26897
23, 46, 76, 110, 152, 192
What value should come at the place of question mark in the following number series?
10, 15, 30, 65, 155 ?
215, 335, 485, 665, 875, ?
44, 72, 104, 140, 180, ?
In each of the following questions, two equations are given. You have to solve these equations to find the relation between x and y.
1. 8x2 – 15x + 7 = 0
2. 2y2 – 15y + 28 = 0
1. 2x2 – 7x + 6 = 0
2. y2 + 13y + 42 = 0
1. 2x2– 9x + 9 = 0
2. 8y2+ 34y + 21 = 0
1. 2x2 – 13x + 15 = 0
2. 3y2 + 28y + 65 = 0
1. x2 = 2401
2. y3 = 117649
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