If, A = 1, B = 4, C = 9, D = 16 Then; E = ?

Question

If
A x 4 = E
B ÷ 4 = E
C + 4 = E
D - 4 = E
A + B + C + D = 100

Challenge
What is the value of E ?

Answer 1

The answer is 25.

Solution:

A = 0 + 1 = 1
B = 1 + 3 = 4
C = 4 + 5 = 9
D = 9 + 7 = 16
then
E = 16 + 9 = 25

Answer 2

Could also be,

A = 1^2 = 1

B = 2^2 = 4

C = 3^2 = 9

D = 4^2 = 16

E = 5^2 = 25

Both give E = 25 though so it doesn't really matter how you get there

Answer 3

The gap between two number is odd number like 3, 5,7, 9 like that next number is 16+9=25

Answer 4

simple ans 25

Answer 5

The difference between the increments of the figures is 2 so 16 +9 = 25

Answer 6

a=1x1=1
b=2x2=4
c=3x3=9
d=4x4=16
e=5x5=25