Evaluate 23 x 54 (mod 7)
A
2
B
3
C
5
D
6
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
23 x 54 = 1242
In mod 7;
1242 ÷ 7 = 177 R 3
Hence; 1242 ≡ 3
Source: WAEC / JAMB / NECO Classroom Archive (Record #64451)