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Question -

The sum of four consecutive numbers in A.P. is 32 and the ratio of the product of the first and last terms to the product of two middle terms is 7 : 15. Find the number. [NCERT Exemplar]



Answer -


or, d = ± 2
So, when a = 8, d = 2,
the numbers are 2, 6, 10, 14.

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