Question

Which of the following is a correct relation?

• A. ${ }_{ a } \mu_{ r }={ }_{ a } \mu_{ w } \times{ }_{ r } \mu_{ w }$
• B. ${ }_{ a } \mu_{ r } \times_{ a }\mu_{w}={ }_{ w } \mu_{ a }$
• C. ${ }_{a} \mu_{ r } /_{r} \mu_{a}=0$
• D. ${ }_{ a } \mu_{ r } /{}_{w} \mu_{r}={ }_{a} \mu_{w}$

Answer 1

Answer: (D)

When going through the option, we see that
$\frac{{ }_{a} \mu_{r}}{w \mu_{r}}=\frac{\mu_{r} / \mu_{a}}{\mu_{r} / \mu_{w}}=\frac{\mu_{w}}{\mu_{a}}={ }_{a} \mu_{w}$