How old was the youngest elected president when he took office?
42
57
69
58
57
59
69
62
58
77
61
66
57
59
69
63
62
58
77
61
66
57
59
76
69
63
62
58
77
61
66
57
59
67
40
76
69
63
62
58
77
61
50
40
66
68
57
59
69
63
62
58
77
61
67
50
40
65
55
66
57
59
36
38
76
69
62
58
77
61
50
40
65
68
55
63
36
38
45
57
59
67
50
40
65
76
69
62
58
77
61
55
60
66
42
48
68
36
38
49
45
50
40
65
54
57
59
67
55
60
69
63
42
62
48
58
77
78
47
36
38
49
45
44
50
40
65
54
76
61
55
60
66
42
48
68
47
57
71
36
38
69
49
58
45
77
44
41
35
78
50
40
65
54
59
67
55
60
63
42
62
48
61
47
36
38
66
49
45
44
41
35
57
50
40
64
65
54
76
69
58
46
55
60
42
48
68
47
71
36
38
63
49
45
77
44
41
35
78
37
50