Question

A puppy weighed 2kg.

Answer 1

Answer:

The percentage increase in the puppy's weight is 75%.

Step-by-step explanation:

We can find the percentage increase using the following formula:

$\boxed{\% \space\ \mathrm {increase = \frac{final \space\ - \space\ initial}{initial} \times 100}}$.

In this case,

• initial = 2 kg

• final = 3.5 kg

Substituting these values into the formula:

${\% \space\ \mathrm {increase = \frac{3.5 \space\ - \space\ 2}{2} \times 100}}$

                ⇒ $\frac{1.5}{2} \times 100$

                ⇒ $0.75 \times 100$

                ⇒ 75%

Answer 2

Answer:

$3.5 - 2 \times 100 \div 2$