# Define 1 : 1 ratio.

A ratio is defined as a comparison of two quantities. The general form of representing a ratio between two quantities say 'a' and 'b' is a: b,** **which is read as 'a is to b'.

## Answer: 1 : 1 ratio means when two quantities are measured or expressed in the same proportion.

The ratio a : b helps us to know how much one part of a is equivalent to one part of b.

**Explanation:**

When two quantities are taken in the same proportion, they are said to be in the ratio of 1:1

For example,

- 1 pound of cake contains, flour and sugar in a 1 : 1 ratio. That means in this mixture both the items are equally balanced, for 100 grams of flour 100 grams of sugar needs to be added.
- The volumes of a 1-liter water bottle and 1-liter petrol can are in a 1 : 1 ratio.

Here, 1: 1 means one part of 'a' is exactly equal to one part of 'b'.

1 : 1 = 2 : 2 = 3 : 3 = ...... = a : a

Therefore, a 1: 1 ratio means the compared items are equal in quantity with respect to each other.

### Thus, 1: 1 ratio means when two quantities are measured in the same proportion.

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