A girl was asked to multiply a certain number by 43. She multiplied it by 34 and got his answer less than the correct one by 1206. Find the number to be multiplied.
Choose the correct answer:
A) 130  B) 132  C) 134  D) 136  E) 138

Rationale: "let the required number be x . then , 43 x – 34 x = 1206 or 9 x = 1206 or x = 134 . required number = 134 . answer : c"
Answer: C