100 Day Summer Challenge

100 problems in 100 days. #100problems

Day 62

62 of 100: A Weighty Issue

Algebra

All the scales shown are perfectly balanced. What is the weight of one triangle?

There are lots of clever tricks to solve this one pretty quickly in your head! While you can also solve this puzzle by converting to algebraic symbols, you don't have to!

Your Current Progress

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100