Question

red and green tokens was 12:35 while pink and red tokens was 25:18 and what is the ratio of green and pink

Answer 1

given that
$\frac{r}{g} = \frac{12}{35}$
$r = \frac{12}{35} g$

and also
$\frac{p}{r } = \frac{25}{18}$
putting r value in eqn 2
$\frac{p}{ \frac{12}{35} g} = \frac{25}{18}$
$\frac{35p}{12g} = \frac{25}{18}$
$\frac{p}{g} = \frac{25}{18} \times \frac{12}{35}$
on solving we get
$\frac{p}{g} = \frac{10}{21}$
$\frac{g}{p} = \frac{21}{10}$