Multiple Choice Questions on The sum of three numbers in Arithmetic Progression is 72 and their product is 11880 What are the num........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The sum of three numbers in Arithmetic Progression is 72 and their product is 11880 What are the num...........

Quantitative Aptitude ( CCS) Arithmetic progression
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    The sum of three numbers in Arithmetic Progression is 72 and their product is 11880. What are the numbers?

    21, 24, 27

    Incorrect Answer

    12, 24, 36

    Incorrect Answer

    18, 24, 30

    Incorrect Answer

    15, 24, 33

    Correct Answer
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    Explanation:

    Assuming that the numbers in the Arithmetic Progression are (a – d), a, (a + d) and their sum is 72,
    we get the middle number as 24. Now, the product (a – d) (a + d) = 495.
    Solving, we get d = 9.
    Therefore, the numbers are 15, 24 and 33.

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