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    Question

    What value should come in place of the question-mark (?) in the following questions:

    √(2670+ √(1141+ √(260- √(1251- √(637+ √1521)

    ) ) ) )  =?
    A 42 Correct Answer Incorrect Answer
    B 52 Correct Answer Incorrect Answer
    C 56 Correct Answer Incorrect Answer
    D 64 Correct Answer Incorrect Answer
    E 68 Correct Answer Incorrect Answer

    Solution

    √(2670+ √(1141+ √(260- √(1251- √(637+ √1521) ) ) ) )   = √(2670+ √(1141+ √(260- √(1251- √(637+ 39)) ) ) )  = √(2670+ √(1141+ √(260- √(1251- √676) ) ) )   = √(2670+ √(1141+ √(260- √(1251- 26)) ) )  = √(2670+ √(1141+ √(260- √1225) ) )  = √(2670+ √(1141+ √(260- 35)) )  = √(2670+ √(1141+ √225) )  = √(2670+ √(1141+ 15))  = √(2670+ √1156)  = √(2670+ 34) = √2704 = 52

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