Question

There are four elephants for every five monkeys at the zoo how many elephants are there if there 25 monkeys
Nine elephants
12 elephants
15 elephants
20 elephants

Answer 1

To determine the number of elephants based on the ratio of elephants to monkeys, we can set up a proportion.

The ratio of elephants to monkeys is given as 4:5. This means that for every 4 elephants, there are 5 monkeys.

If there are 25 monkeys, we can set up the following equation based on the ratio:

\[
\frac{4 \text{ elephants}}{5 \text{ monkeys}} = \frac{x \text{ elephants}}{25 \text{ monkeys}}
\]

Where \( x \) is the number of elephants.

Now, cross-multiplying gives us:

\[
4 \times 25 = 5 \times x
\]

This simplifies to:

\[
100 = 5x
\]

Now, divide both sides by 5:

\[
x = \frac{100}{5} = 20
\]

So, there are **20 elephants** at the zoo.