» » » Given that $$p:q = \frac{1}{3}:\frac{1}{2}$$ and $$q:r = \frac{2}{5}:\frac{4}{7},$$ find $$p:r$$...

# Given that $$p:q = \frac{1}{3}:\frac{1}{2}$$ and $$q:r = \frac{2}{5}:\frac{4}{7},$$ find $$p:r$$...

### Question

Given that $$p:q = \frac{1}{3}:\frac{1}{2}$$ and $$q:r = \frac{2}{5}:\frac{4}{7},$$ find $$p:r$$

### Options

A)
$$4:105$$
B)
$$7:15$$
C)
$$20:21$$
D)
$$2:35$$