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

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If (2x, x+6, 18) are in an arithmetic progression, what is the value of (d)?

Answer and explanation

Correct answer: (6)

(2(x+6)=2x+18) gives (2x+12=2x+18), which is false, so no (x) is possible. Hence (d) is not determined.

Related tags

Ap No Solution Algebraic Condition Hard Introduction To Aps And Common Difference.Introduction To Aps And Common Difference Arithmetic Progressions (Ap)Arithmetic Progressions Ap

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