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    Question

    Select the option that is related to the third number in

    the same way as the second number is related to the first number and the sixth number is related to the fifth number. 15: 210 :: 21: ? :: 19 : 342
    A 425 Correct Answer Incorrect Answer
    B 420 Correct Answer Incorrect Answer
    C 427 Correct Answer Incorrect Answer
    D 430 Correct Answer Incorrect Answer

    Solution

    15² - 15 = 225 – 15 = 210 19² - 19 = 361 – 19 = 342 21² - 21 = 441 – 21 = 420

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