Arithmetic Reasoning
Yesterday I presented a percent question. If a car costs $10,000 and is on sale for $8,000, what is the percent discount?
In my role as an ASVAB tutor, I teach my students the formula for percent increase and decrease. Today’s question is about finding percent discount.
The formula is difference/original = %/100
Difference means to subtract the 2 amounts.
$10,000 – $8,000 = $2,000
$2,000 goes on the top of the fraction
The original price of the car is $10,000.
$10,000 goes on the bottom.
2,000/10,000 = x/100
Cross multiply and solve for x
10,000x = 200000
Cancel out 4 zeros on each side.
x = 20
The answer is a 20% discount.
