New RBI Grade B 2025 Notification will come Soon! Enroll Here

    Question

    What approximate value will come in place of question (?) in the following given expression? You are not expected to  calculate the exact value.

    (74.93% of 640.11 + 3/4 of 359.79)² - (1/3 of 80.87 ×

    2)² = ?
    A 546225 Correct Answer Incorrect Answer
    B 559584 Correct Answer Incorrect Answer
    C 548400 Correct Answer Incorrect Answer
    D 552441 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    (74.93% of 640.11 + 3/4 of 359.79)² - (1/3 of 80.87 × 2)² = (0.75 × 640 + (3/4) × 360)² - ((1/3) × 81 × 2)² = (480 + 270)² - (54)² = 750² - 54² = (750 + 54)(750 - 54) = 804 × 696 = 559584

    Practice Next

    Relevant for Exams: