Question

what will come in place of question mark
4
5,........,8,56,7,63,9?​

Answer 1

Answer:

in place of question mark 25

Answer 2

$5, \: \: ?, \: \: 8, \: \: 56, \: \: 7, \: \: 63, \: \: 9 \\ \\ In \: \: this \: \: number \: \: series, \\ {3}^{rd} \: digit × {5}^{th} \: digit = {4}^{th} \: digit \\ 8 × 7 = 56 \\ \\ Similarly, \\ {5}^{th} \: digit \times {7}^{th} \: digit = {6}^{th} \: digit \\ 7 \times 9 = 63 \\ \\ Therefore, \\ {1}^{st} \: digit \times {3}^{rd} \: digit = {2}^{nd} \: digit \\ 5 \times 8 = 40 \\ \\ The \: \: {2}^{nd} \: \: digit \: \: of \\ this \: \: number \: \: series \: \: is \: \: 40$