The percentage increase in the puppy's weight is 25% and this can be determined by using the unitary method.
Given :
- In January, a puppy weighed 4kg.
- Three months later, the same puppy weighed 5kg.
The following steps can be used to determine the percentage increase in the puppy's weight:
Step 1 - The unitary method can be used to determine the percentage increase in the puppy's weight.
Step 2 - According to the given data, in January, a puppy weighed 4kg. Puppy's weight is 4kg in January which is 100%.
Step 3 - So, if 4 kg is 100% then 5kg is equal to:
[tex]=\dfrac{100}{4}\times 5[/tex]
Multiply 100 by 5 in the above expression.
[tex]=\dfrac{500}{4}[/tex]
Divide 500 by 4 in the above expression.
= 125%
Step 4 - So, the percentage increase in the puppy's weight is:
= 125 - 100
= 25%
For more information, refer to the link given below:
https://brainly.com/question/14793162
