Which of the following numbers will replace the question mark (?) in the given series ?
13, 27, 56, 115, 234, ?

Given: 13, 27, 56, 115, 234, ?

Logic: Numbers are getting two times and adding +1, +2, +3.....

​$$13\times2+1 = 27\\ \ \\27\times2+2=56\\ \ \\56\times2+3=115\\ \ \\115\times2+4=234\\ \ \\ \bf{Similarly}:\\ \\234\times2+5= 473$$​​

Thus, correct option is (d).