Question
Select the option in which the numbers are related in
the same way as are the number of the following set. (4, 8, 40)Solution
(4, 8, 40) → 4 x 2 = 8; 8 x 5 = 40 (12, 36, 180) → 12 x 3 = 36; 36 x 5 = 180 (9, 27, 90) → 9 x 3 = 27; 27 x 5 = 135 (14, 64, 320) → 14 x 4 = 64; 64 x 5 = 320 (6, 12, 60) → 6 x 2 = 12; 12 x 5 = 60
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13, 91, 108, 756, ?, 5411
The function f(x)=x3 −62x2+ax+9 has a local maximum at x=1. Then the value of a is:
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'Symbian' is a_______
