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Class 10 Mathematics Arithmetic Progressions (AP)Introduction to APs and common difference.Hard

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If (x,2x+4,4x) are in an arithmetic progression, what is the common difference?

Answer and explanation

Correct answer: (8)

From (2(2x+4)=x+4x), (4x+8=5x), so (x=8). Then (d=20-8=12), so none of the listed values is correct.

Related tags

Ap Algebraic Ap Find D Hard Introduction To Aps And Common Difference.Introduction To Aps And Common Difference Arithmetic Progressions (Ap)Arithmetic Progressions Ap

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