The value of 'k' for which the numbers x, 2x + k, 3x + 6 are in A.P. is *
Ο 5
Ο 6
Ο Ο Ο Ο
Ο 3
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Answer:
k = 3
Step-by-step explanation:
x , 2x + k , 3x + 6
In an A.P. common difference d is always same.
==: 2x + k - x = 3x + 6 - (2x + k)
==: 2x + k - x = 3x + 6 - 2x - k
==: x + k = x + 6 - k
==: k = 6 - k
==: 2k = 6
==: k = 3
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