Question

There are some biscuits on a plate. 1 4 of the biscuits are chocolate. The rest of the biscuits are plain. Write down the ratio of the number of chocolate biscuits to the number of plain biscuits. Give your ratio in its simplest form.

Answer 1

Answer:

1 : 3

Step-by-step explanation:

¼ of the biscuits are chocolate while the rest are plain.

Since a fraction is a part of a whole, 1, then it means that the fraction that are plain is:

1 - ¼ = ¾

Therefore, the ratio of chocolate biscuits to plain biscuits is:

¼ : ¾

To put this in simplest dorm, multiply both sides by 4, we have:

1 : 3

This is the ratio of chocolate biscuits to plain biscuits.

Answer 2

The ratio of the numbers of the chocolate biscuits to plain biscuits to its simplest form is $\mathbf{1:3}$

In probability, we know that the sum of all the outcomes is usually equal to one.

Given that:

The number of biscuits that are chocolate on the plate is = 1/4

The rest of the biscuits that are plain will be = 1 - 1/4

$= \mathbf{\dfrac{3}{4}}$

Now, the ratio of the numbers of the chocolate biscuits to plain biscuits to its simplest form is:

$\mathbf{\dfrac{1}{4}:\dfrac{3}{4}}$

$\mathbf{\dfrac{1}{4} \times \dfrac{4}{3}}$

= 1 : 3

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