Real Numbers
RD Sharma Ch 01
CBSE_RD_SHARMA_CH01
Grade 10
Question:
If $\text{HCF}(a, b) = 1$, then $a$ and $b$ are called:
Composite numbers
Coprime numbers
Twin prime numbers
Even numbers
Step-by-Step Solution
Key Concept: Two numbers are coprime if their highest common factor is 1.
Stepwise Solution:
By definition, numbers with $\text{HCF} = 1$ are coprime numbers. [1.0 Mark]
Marking Scheme:
• Recalling definition of coprime numbers: 1.0 Mark
Correct Answer: Coprime numbers
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