If 10 A 5 B 6 C 30= 270 and 4 A 6B7C8=160, then
8 A 5 B 6 C 10 = ?

Correct option is A

Given: 10 A 5 B 6 C 30= 270 and 4 A 6B7C8=160
Analyzing the give equations:

1st equation:
10 A 5 B 6 C 30 = 270
10 × 5 × 6 - 30= 270
300 – 30 = 270
270 = 270
2nd equation:
4 A 6B7C8 =160
4 × 6 × 7 – 8 =160
168 – 8 =160
160 = 160
Similarly:
= 8 A 5 B 6 C 10
= 8 × 5 × 6 - 10
= 240 – 10
= 230
Thus, correct option is (a).