Percentage aptitude questions are a common component of many competitive exams, job interviews, and academic assessments. These types of questions require candidates to calculate percentages, proportions, ratios, and other related concepts to solve problems related to various fields, including business, finance, and science. Common percentage aptitude question tricks include converting percentages to fractions and decimals, using ratios and proportions to find unknown values, and simplifying complex calculations using cross-multiplication and cancellation methods.
Here, I am sharing Percentage Aptitude Questions Tricks with Answers related to Percentage Questions and Answers under General Math and Aptitude section for those aspirants who are preparing for upcoming competitive exams like SSC, Bank, RRB and other government exams.
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Q : A number is first increased by 10% and then it is further increased by 20%. The original number is increased altogether by:
(A) 30%
(B) 15%
(C) 32%
(D) 36%
The length of a rectangle is in- creased by 10% and breadth de- creased by 10%. Then the area of the new rectangle is:
(A) neither decreased nor increased
(B) increased by 1%
(C) decreased by 1%
(D) decreased 10%
B got 20% marks less than A. What per cent marks did A got more than B?
(A) 20%
(B) 25%
(C) 12%
(D) 80%
Priyanshu's salary was reduced by 10% and then the reduced salary was increased by 10%. His new salary in comparison with his original salary is:
(A) 5% increased
(B) 1% increased
(C) 1% decreased
(D) 5% decreased
If the duty on an article is reduced by 40% of its present rate by how much per cent must its consumption increase in order that the revenue remains unaltered?
(A) 60%
(B) 62%
(C) 72%
(D) None of these
The price of sugar is reduced by 20%. Now a person can buy 500g more sugar for ₹ 36. The original price of the sugar per kilogram was:
(A) ₹ 14.40
(B) ₹ 18
(C) ₹ 15.60
(D) ₹ 16.50
Two candidates fought an election. One of them got 65% of the total votes casted and won by 420 votes. What is the total number of votes polled if no vote is declared invalid?
(A) 1500
(B) 1400
(C) 1300
(D) 1200
A person spends 40% of his monthly income. The monthly income of the person is increased by 15% and his expenditure is decreased by 22%. What is the approximate percentage increase in his savings?
(A) 40%
(B) 44%
(C) 32%
(D) 36%
B is 10% more than A. C is 20% less than A. B is what percentage more than C?
(A) 45%
(B) 27.5%
(C) 37.5%
(D) 25%
If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years.
(A) 15,972
(B) 12,200
(C) 11,200
(D) 10,200
To find the population after 3 years given that it increases at a rate of 10% per annum, you can use the formula for exponential growth:
𝑃=𝑃0×(1+𝑟)𝑛P=P0×(1+r)n
Where:
Given:
Substitute these values into the formula:
𝑃=12,000×(1+0.10)3P=12,000×(1+0.10)3
𝑃=12,000×(1.10)3P=12,000×(1.10)3
𝑃=12,000×(1.331)P=12,000×(1.331)
𝑃=15,972P=15,972
So, the population after 3 years would be approximately 15,972.
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