What will come in place of the x in the following Number series? 25, 100, 400, 1600, 6400, X  Choose the correct answer
A) 64000
B) 69000
C) 25600
D) 75000
E) 79000
(25600)   25 x 4 = 100, 100 x 4 = 400, 400 x 4 = 1600, 1600 x 4 = 6400, 6400 x 4 = 25600
<result>C</result>
What will come in place of the x in the following Number series? 25, 100, 400, 1600, 6400, X