Verbal Reasoning

Mathematical Operations - Base Level

21. 

If 2 & 6 % 7 = 33, 4 & 6 % 8 = 54, then what will be the value of 6 & 8 % 9 = ?

A. 95
B. 77
C. 99
D. None
22. 

If 16 - 2 = 2, 9 - 3 = 0, 81 - 1= 8, then what is 64 - 4 = ?

A. 4
B. 2
C. 6
D. 8
23. 

Change symbol and solve accordingly to find correct answer from the alternatives given below:
9 x 8 x 7 = 24, 4 x 7 x3 = 14, 2 x 1 x 9 = ?

A. 12
B. 10
C. 18
D. 11
24. 

If 879 = 8, 625 = 1 and 586 = 9, then 785 = ?

A. 6
B. 7
C. 8
D. 9