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Arithmetic Progressions
RD Sharma
CBSE
Grade 10

Question:

Find the value of $x$ for which $x + 2, 2x, 2x + 3$ are three consecutive terms of an A.P.

Step-by-Step Solution

Key Concept: $2(2x) = (x + 2) + (2x + 3) \Rightarrow 4x = 3x + 5 \Rightarrow x = 5$.
$4x = 3x + 5 \Rightarrow x = 5$. [2.0 Marks]

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🎯 Official CBSE Marking Scheme:
Solving $4x = 3x + 5 \Rightarrow x = 5$: 2.0 Marks

Correct Answer:
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