Fractions and Percentages

Aptitude Test on Fractions & Percentages: Tips and Aptitude Questions

Aptitude Tips - Fractions & Percentages

Tips on answering Quantitative Aptitude Questions on Fractions & Percentages

    1 Tips


Learning Pundits Content Team

Written on Sep 30, 2017 12:20:58 AM

2 TIPS on cracking Aptitude Questions on Percentages

Looking for Questions instead of tips? - You can directly jump to  Aptitude Test Questions on Fractions and Percentages

Tip #1: Formula for change Percentage change= {[New Value – Original Value]/ Original value} x 100%

Question: A student multiplied a number by 3/5 instead of 5/3. What is the percentage error in the calculation?


Expected correct answer = 5/3 x Number

The new erroneous answer = 3/5 x Number

Percentage error = [3/5 – 5/3]/ 5/3 = - 64%

Question: If Sham had 24 shirts originally, by what % were his shirts reduced if he donated 4 of them?


Percentage by which his shirts were reduced = (4 / 24) x 100%= 16.6%

Note: The most common type of questions on percentage that are encountered in any aptitude type paper is the Change Type, i.e., you will be required to calculate the percentage of change in any quantity, be it the price, population, or simply the amount of rainfall. It is imperative to remember that under all circumstances, the denominator will be the original value.

Are you engaged in a Job Search? - You can get your Resume/ CV reviewed for free and then apply for jobs/ internships.

Tip #2: Questions that involve series of changes should be solved step by step

Question: By what % the new price of wardrobe has to be increased to get original value, if it was decreased by 20%?


Let the original price be X.

Then the new price= (100 – 20) % of X= 80% of X= 0.8 X

Required raise in price= X – 0.8X= 0.2X

Percentage change in price= (0.2X / 0.8X) x 100%= 25%

Question: Ram buys good worth Rs.500. He gets a rebate of 6% on it. After getting the rebate he pays sales tax @ 10%. Find the amount he will have to pay for the goods.


Price after rebate= 94% of Rs.500 = 0.94 x 500

Sales tax= 10% of rebated price.

Final price= 110% of price after rebate= 1.1 x 0.94 x 500 = Rs.517

Notes: Let the price of an item be first reduced by the X%, then increased by y% and then finally increased by another y%. In order to solve the problem, first consider the initial price to be P. Then calculate the first discounted price. Let it be Q. Calculate the raised price by operating upon Q. Calling this new price to be RR, calculate the final price by raising R by y%.

Are you interested in getting Certificates to boost your Resume? Participate in our Online Grammar and Aptitude Contests. It only takes 20 mins. All participants get Participation Certificates while the top 100 winners get Amazon Cash Vouchers every week. Participate NOW!

Become a Campus Ambassador for LearningPundits - Promote our Weekly Online Contests to other students in your Campus via Posters, Facebook, WhatsApp, Email and face to face communication. You will receive a stipend based on your performance and an Internship Certificate to boost your Resume. Email your Resume to

As a gesture of support, please follow us on Facebook and YouTube


Fractions and Percentages

Aptitude Test on Fractions & Percentages: Tips and Aptitude Questions



    {{sectionContentCount}} {{contentCountNoun}}

LearningPundits is powered by

CodeGround Online Testing Platform

Weekly Contests Leaderboard

Rank - {{getRank($index,weeklyWinner)}}: {{weeklyWinner.userName}}


« Previous Next »

Subscribe to our RSS Feed