Find a, b such that 27, a, b - 6 are in A.P.

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asked Mar 14, 2018 in Mathematics by paayal (26,720 points) 4 6 11
Find a, b such that 27, a, b - 6 are in A.P.

1 Answer

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answered Mar 14, 2018 by sanjaydas (61,430 points) 5 7 7
selected Mar 15, 2018 by faiz
 
Best answer

27, a, b - 6 are in A.P.
d= t2-t1=t3-t2= a -27 =b-6-a
 ➪a+a=b-6+27
➪2a=b+21
➪2a-b=21

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