Answer
a) $3%$
b) $1.67%$
c) $1.67%$
Work Step by Step
The variation in efficiency is proportional to the variation in temperature, so:
a) $3\%$ for each $^{\circ}C$ = $3\%$ for each $K$
b) A change of $1^{\circ}C$ in temperature corresponds to a change of $1.8^{\circ}F$, so:
$\frac{3}{1.8}=1.67\%$ for each $^{\circ}F$
c) A change of 1K in temperature corresponds to a change of $1.8^{\circ}R$, so:
$\frac{3}{1.8}=1.67\%$ for each $R$
