There is a gap of 4 letters between the first and second, second and third letters of each term, and also between the last letter of the term and first letter of next term
T - 2 = R
R - 2 = P
P - 2 = N
N - 2 = L
L - 2 = J
J - 2 = H
The pattern is -95, -85, -75, -65, . . . .
The given series consists of squares of consecutive prime numbers
2*2, 3*3, 5*5, . . . . , 11*11, 13*13, 17*17
The series follows a pattern that,
-92, +82, -72, +62, -52
Given series follows Cubes on Prime Numbers
i.e but is 1331
so 1381 is wrong
The series is bac/bac/bac/bac/bac/bac.
The pattern bac is repeated.
Take a Look at the below sereies
The terms of the given series is 1*1, 2*2 + 1, 3*3, 4*4 +1, 5*5, 6*6 + 1, . . . . .
So, 15 is wrong and must be replaced by (4*4 + 1) = 17
The pattern of given series is :
5
14 = (5x3) - 1
45 = (14x3) + 3
130 = (45x3) - 5
(?) = (130x3) + 7
=> (?) = 397
1182 = (397x3) - 9
Thus, the missing number is 397.
The given number series is 18, 90, 450, 2250, ?
18
18 x 5 = 90
90 x 5 = 450
450 x 5 = 2250
2250 x 5 = 11250
Hence, the next number in the given series is 11250.
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