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

    Question

    The value of the expression (1.55²  + 0.55²  + 1.55

    × 0.55) is equal to:
    A 1.55² – 0.55² Correct Answer Incorrect Answer
    B 1.55³ – 0.55³ Correct Answer Incorrect Answer
    C 1.55³ + 0.55³ Correct Answer Incorrect Answer
    D 1.55² + 0.55² Correct Answer Incorrect Answer

    Solution

    Given: (1.55²  + 0.55²  + 1.55 × 0.55)

    = 2.4025  +  0.3025  +  0.8525  =  3.5575

    Now check options:
    A: 1.552−0.552=2.11.55^2 - 0.55^2 = 2.1 1.5 5 2  −  0.5 5 2  =  2.1
    B: 1.553−0.553=3.55751.55^3 - 0.55^3 = 3.5575 1.5 5 3  −  0.5 5 3  =  3.5575
    C: 1.553+0.553=3.887251.55^3 + 0.55^3 = 3.88725 1.5 5 3  +  0.5 5 3  =  3.88725
    D: 1.552+0.552=2.7051.55^2 + 0.55^2 = 2.705 1.5 5 2  +  0.5 5 2  =  2.705

    Practice Next
    More Previous year papers Questions

    Relevant for Exams:

    ask-question