PracticeQuiz content is free on an ad-supported model.

Unfortunately, we can't support ad blocker usage because of the impact on our servers. If you'd like to continue, please disable your ad blocker and reload page.

Reload page

GMAT Math Practice Test #1

Category - Math

Start a Study Session Sign up for Question of the Day

If width of a rectangle is increased by 10% and the length is decreased by 20%, by what percent does the area decrease?

Explanation

Answer B

Original area = a x b Revised area = 1.1a x 0.8b = 0.88ab
Decrease in area = 0.12 = 12%

Key takeaway: The word problems based on basic geometry are easy to tackle if you remember simple formulae ( perimeter, area ) of rectangle, square, circle etc. and their applications.

Previous Next

Was this helpful? Upvote!

Start a Study Session Sign up for Question of the Day

Most popular on PracticeQuiz

219 votes

You are attempting to gather information from a patient, but they are having a hard time trying to communicate since they were hit in the throat by a baseball bat. What is the function of the vocal cords? NREMT Advanced EMT
210 votes

An 8-year-old boy named Albert has a 10-year-old brother named Benny. Benny joins the service at 20 leaving Albert feeling bitter that he no longer has a brother to look up to. After 7 years, Albert is finally ready to make up with Benny who has been out of the service for 5 years. How old is Albert now? GED Exam Prep: Math
188 votes

Using motivation from ‘within’ is called ______________. CPCE Exam Prep
179 votes

The lymphatic system contains four organs: Medical Coding Exam Prep
128 votes

“A set of specialized organizational capabilities for providing value to customers in the form of services” is the official definition of: IT Service Management Foundation Practice Test

GMAT Math Practice Test #1

Top questions

Related questions

Most popular on PracticeQuiz

Ad-Blocker not supported

GMAT Math Practice Test #1

Top questions

Related questions

Most popular on PracticeQuiz