Question

3,7,13,21,31 Solve the problem ​

Answer 1

$A \: \: multiple \: \: of \: \: 2 \: \: is \: \: being \: \: added \: \: to \: \: each \: \: term.$

Step-by-step explanation:

$Given, \\ 3,7,13,21,31 \\ we \: \: see \: \: that \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 3 = 3 +\boxed{0} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 7 = 3 + \boxed{4} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 13 = 7 + \boxed{6} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: 21 = 13 + \boxed{8} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: 31 = 21 + \boxed{10} \\ Similarly \: \: we \: \: see \: \: that \: \: \\ A \: \: multiple \: \: of \: \: 2 \: \: is \: \: being \: \: added \: \: to \: \: each \: \: term.$