Use BODMAS multiplication before addition = 280If helmet + helmet - helmet = 30, then 30 + 30 - 30 = 30, so helmet = 30
If quiver + quiver + helmet = 130, then 50 + 50 + 30 = 130, so quiver = 50
If quiver - double axe - helmet = 10, then 50 - 10 - 30 = 10, so double axe = 10
Therefore helmet + quiver x single axe = ?
If double axe = 10, then single axe = 5
30 + 50 x 5 = 400, so ? = 400
400 is the solution to the puzzle, therefore 400 = 2000 sapphires
Let's assume:
Helmet = H
Quiver = Q
Axe = A
1. H + H - H = 30
H = 30
2. Q + Q + H = 130
2Q + 30 = 130
Q = (130 - 30) / 2
Q = 50
3. Q - A - H = 10
50 - A - 30 = 10
- A = (10 + 30) - 50
- A = - 10
A = 10
4. H + 4/5 Q x 1/2 A = ?
30 + [(4 x 50) / 5] x (10 / 2) = ?
30 + (40 x 5) = ?
30 + 200 = 230
Therefore correct answer is 230.