Answer:
$200
Step-by-step explanation:
Suppose the original total amount of money is x.
We know that 1/4 of the original money is given to charity, so we can write this as (1/4) * x.
After donating (1/4) * x of the money to charity, how much money do we have left? Simply subtract (1/4) * x from x:
x - (1/4) * x = (1 - 1/4) * x = (3/4) * x
This amount of money, (3/4) * x, is divided <em>equally</em> between two people: the son and the daughter. Since each person receives the same amount of money, we can divide (3/4) * x by 2 to obtain the value each will get:
(3/4) * x ÷ 2 = (3/8) * x (remember when dividing fractions, "flip the guy and multiply")
We actually already know what (3/8) * x in monetary value is: $300. So, let's set these equal to solve for x:
(3/8) * x = 300
x = 300 ÷ (3/8) = 300 * (8/3) = $800
That means the original amount was $800. We'd like to find the amount of money given to charity, which is 1/4 of the original. So, multiply 800 by 1/4:
(1/4) * 800 = 200
The answer is thus $200.
<em>~an aesthetics lover</em>
