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    Question

    (23.99)2 – (17.99)2 +

    (1378.88 + 44.88) ÷ ? = 607.998 What approximate value will come in place of question mark (?) in the given equations?
    A 6 Correct Answer Incorrect Answer
    B 12 Correct Answer Incorrect Answer
    C 8 Correct Answer Incorrect Answer
    D 3 Correct Answer Incorrect Answer
    E 4 Correct Answer Incorrect Answer

    Solution

    Here, terms of the given expressions can also be written as (24)2 – (18)2+ ((1379 + 45) ÷ ? )= 608 ⇒ 576 - 324 + (1424 ÷ ? ) = 608 ⇒ 1424 ÷ ? = 356 ⇒ ? = 1424/356 = 4

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