If 35 A 18 B 5 C 10 = 115 and 41 A 23 B 7 C 15 = 187, then 8 A4 B 5C9=?

Correct option is B

Given:
35 A 18 B 5 C 10 = 115
41 A 23 B 7 C 15 = 187
Let- A = +, B = × and C = -
35 A 18 B 5 C 10 = 115
After replacing the alphabet with the sing, we get following equation-
35 + 18 × 5 - 10 = 115
35 + 90 - 10 = 115
125 - 10 = 115
115 = 115
41 A 23 B 7 C 15 = 187
After replacing the alphabet with the sing, we get following equation-
41 + 23 × 7 - 15 = 187
41 + 161 - 15 = 187
41 + 161 - 15 = 187
202 – 15 = 187
187 = 187
Similarly,
8 A 4 B 5 C 9=?
8 + 4 × 5 - 9=?
8 + 20 - 9=?
28 - 9=?
? = 19
Thus, the correct answer is (b) 19.