# Question #8f607

Apr 4, 2017

Area of desert a = 600,000 square miles
Area of desert b = 200,000 square miles.

#### Explanation:

Let area of desert a be $x$ square miles and let area of desert b be $y$ square miles.

We have:
$x = 3 y$
$x + y = 800000$

Putting x as 3y in second equation, we get:
$\left(3 y\right) + y = 800000$
$4 y = 800000$
$y = 200000$

We know that $x = 3 y$ so,
$x = 3 \times \left(200000\right)$
$x = 600000$

Hence, area of desert a is 600,000 square miles, and area of desert b is 200,000 square miles