Question

8) 3: 81 ::4: ?

a) 64 b) 144 c) 256 d) 1024​

Answer 1

Answer:

?=x

$extremes = 3 \times x \\ mean = 81 \times 4 \\ therefore \\ extremes = mean \\3 \times x = 81 \times 4 \\ x = \frac{81 \times 4}{3} \\ x = 108$

options are wrong