Question

18:80::?:143 whats next​

Answer 1

Next number in the series is 24

Step-by-step explanation:

The series follows the following equation:

$2x : x^2-1$

Thus, $2 \times 9 : 9^2-1$

$18 : 80$

Put x = 12

$2 \times 12 : 12^2-1$

$24 : 143$

Thus, missing number in the series is 24