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    Question

    (Q. 61-65) : Four of the five parts numbered (1), (2), (3), (4) and (5) are exactly equal. The number of that part which is not equal is your answer.

    1) 9³ - 6³ - 8³

    >2) `sqrt(841) - sqrt(784) ` 3) `sqrt(5625) - sqrt(4984)` 4) 29² - 15 56 5) `root(3)(6859) - root(3)(5832)`
    A 1 Correct Answer Incorrect Answer
    B 2 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 4 Correct Answer Incorrect Answer
    E 5 Correct Answer Incorrect Answer

    Solution

    Except 3, others are equal to 1 9³ - 6³ - 8³ = 729 – 216 – 512 = 1 `sqrt(841) - sqrt(784)` = 29-28 = 1 `sqrt(5625) - sqrt(4984)` = 75 -70 = 5 29² - 15 [if gte msEquation 12]>× [if !msEquation]-->[endif]--> 56 = 841 – 840 =1 `root(3)(6859) - root(3)(5832)` = 19-18 = 1

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