Question

Ayden had a goal of finishing painting at least 80\%80%80, percent of the 500500500 square meters of a house's walls by today. He actually finished painting 415415415 square meters today. Did Ayden meet his goal? Why? , Ayden painted square meters than his goal.

Answer 1

Answer: Yes, $15\ m^2$

Step-by-step explanation:

Given

The surface area of the house $A=500\ m^2$

Ayden aims to finish 80% of the painting

The actual painting done by him is $A_c=415\ m^2$

Now 80% of the total is

$\Rightarrow A'=500\times \dfrac{80}{100}=400\ m^2$

Clearly, actual painting done is more than 80% of the painting

$\therefore$ Ayden meet his goal

$\Rightarrow A_c-A'=415-400=15\ m^2$

He painted $15\ m^2$ more than his target