ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!

    Question

    The average age of 23 children and their teacher's age

    are 21 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
    A 45 years Correct Answer Incorrect Answer
    B 42 years Correct Answer Incorrect Answer
    C 44 years Correct Answer Incorrect Answer
    D 52 years Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Sum of the age of total children and teacher = 24 × 21 = 504 Sum of the age of children after excluding = 23 × 20 = 460 Teacher’s age = 504 – 460 = 44 years

    Practice Next
    More Average Questions
    ask-question