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

    Question

    Simplify: 13 – [7 – (4 + 7) – {7 – (7 –

    4 + 7)} + 14]
    A 13 Correct Answer Incorrect Answer
    B 9 Correct Answer Incorrect Answer
    D 26 Correct Answer Incorrect Answer

    Solution

    13 – [7 – (4 + 7) – {7 – (7 – 4 + 7)} + 14] = 13 – [7 – 11 – {7 – (7 – 4 + 7)} + 14]   = 13 – [7 – 11 – {7 – (3 + 7)} + 14]   = 13 – [7 – 11 – {7 – 10} + 14]   = 13 – [7 – 11 – {–3} + 14]   = 13 – [7 – 11 + 3 + 14]   = 13 – [(7 – 11) + 3 + 14]   = 13 – [(–4) + 3 + 14]   = 13 – [(–4 + 3) + 14]   = 13 – [(–1) + 14]   = 13 – [13]  = 13 – 13   = 0

    Practice Next
    More Previous year papers Questions

    Relevant for Exams:

    ask-question