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Deepak Bora
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The sum of three numbers in Ap is 27 and their Product is 405. Find the numbers.

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ICSE & CBSE Board Question Based on Arithmetic Progression of RS Aggarwal
Here you have to find the numbers of AP with the help of their given sum and their product.
This is the Question Number 3 Of Exercise 11 B of RS Aggarwal Solution.

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  1. Let the three numbers in A.P is ad,a,a+d

    Sum of three numbers is 27

    ad+a+a+d=27a=9

    Product is 405

    (9d)(9)(9+d)=405

    81d2=45d2=36d=±6

    The numbers are 3,9,15

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