If '×' = '-', '+' = '', '-' = '+', '' = '×', then which is valid?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 10 + 2 - 4 × 1 = 8.
Given equation: 10 + 2 - 4 × 1 = 8
On interchanging the sign:
10 2 + 4 - 1 = 8
5 + 4 - 1 = 8
8 = 8