📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!


    Question

    The 5th term of an AP is 23 and the 12th term is 51.

    Find the 20th term.
    A 69 Correct Answer Incorrect Answer
    B 42 Correct Answer Incorrect Answer
    C 83 Correct Answer Incorrect Answer
    D 77 Correct Answer Incorrect Answer

    Solution

    ATQ,

    d = (51 – 23) / 7 = 4 a = 23 – 4×4 = 7 20th term = 7 + 19×4 = 83

    Practice Next
    ask-question