1. 

Some equation are solved on the basis of a certain system. On the same basis, find out the correct answer for the unsolved equation.

4 - 5 -1 = 514, 3 - 5 - 6 = 563, 0 - 6 - 8 = ?

A. 860
B. 680
C. 806
D. 068

Answer: Option B

Explanation:

mathematical-operations-verbal-reasoning-introduction---mathematical-operations-problems