A number of the form

Question:

A number of the form $\frac{p}{q}$ is said to be a rational number, if

(a) p, q are integers 

(b) $\mathrm{p}, \mathrm{q}$ are integers and $q \neq 0$

(c) $\mathrm{p}, \mathrm{q}$ are integers and $p \neq 0$

(d) $\mathrm{p}, \mathrm{q}$ are integers and $p \neq 0$, also $q \neq 0$

 

 

Solution:

(b) A number of the form $\frac{p}{q}$ is said to be a rational number, if $p$ and $q$ are integers and

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