MCQ Practice Math 📖 The average age of A, B And C sis 30 years. If the difference between B's age and A's age is same as the difference between ... Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up This question appeared in SBL JBL BKB BDBL Officer Question Bank 2019 Question 66