Question

In a running club there are 13 adults and 49 juniors. Write the ratio of adults to juniors in the form 1 : n. Give any decimals in your answer to 2 significant figures.

Answer 1

Answer:

1 : 3.8

Step-by-step explanation:

In a running club there are 13 adults and 49 juniors.

The ratio of adults to juniors can be expressed as:

$\textsf{Adults}:\textsf{Juniors}=13:49$

To write the ratio in the form 1 : n, we need to divide both sides of the ratio by 13:

$\dfrac{13}{13}:\dfrac{49}{13}$

$1:\dfrac{49}{13}$

Since the fraction 49/13 cannot be simplified further, we can express it as a decimal rounded to 2 significant figures:

$\dfrac{49}{13}=3.769230769...=3.8\; \sf (2\;s.f.)$

Therefore, the ratio of adults to juniors in the form 1 : n is:

$\huge\boxed{\boxed{1:3.8}}$