NCERT · Class 8 · Mathematics · FactorisationWhat is the common factor of $3x$ and $15$?
Step-by-Step Solution
To find the common factor of $3x$ and $15$, we find the factors of each term. The factors of $3x$ are $1, 3, x,$ and $3x$. The factors of $15$ are $1, 3, 5,$ and $15$. The common factor present in both is $3$. Therefore, the correct option is $3$.
Detailed Options Breakdown
Option : x
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Factorisation.
Option 1: 3 (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: 5
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Factorisation.
Option 3: 15
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Factorisation.
💡 Study Guide: This question tests core syllabus concepts from Factorisation. For formulas, key summaries, and mock exam reference guides, read the full Factorisation Revision Notes.