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Percentage
Mathematics
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Percentage

Everything you need to master Percentage — the core concept, the method that actually works, and solved practice questions, all in one focused place. · by Digital Benchers

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Percentage is an important topic in Mathematics for competitive exam aspirants. This guide gives you a clear, exam-focused explanation of Percentage, shows how it is typically asked, and pairs it with solved practice questions so you can learn the approach and test yourself right away. Work through the questions below to build speed and accuracy.

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Questions
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Q1When 40% of a number A is added to another number B, B becomes 125% of its previous value. Then which of the following is true regarding the values of A and B?MediumSolve →Q2600 students took the test on Physics and Chemistry. 35% students failed in Physics and 45% students failed in chemistry and 40% of those who passed in Chemistry also passed in physics, then how many students failed in both?MediumSolve →Q3Mr. Ram is worried about the balance of his monthly budget. The price of petrol has increased by 50%. By what percent should he reduce the consumption of petrol so that he is able to balance his budget?MediumSolve →Q4In a physical measurement, by mistake Shyam gave his height as 25% more than normal. In the interview panel, he clarified that his height was 5 feet 5 inch. Find the percentage correction made by the candidate from his stated height to his actual height.MediumSolve →Q5Sachin wanted to subtract 10 from a number. Unfortunately, he added 10 instead of subtracting. Find the percentage change in the result.MediumSolve →Q6In a mixture of 100 litres of milk and water, 25% of the mixture is milk. How much water should be added to the mixture so that milk becomes 20% of the mixture?MediumSolve →Q7The height of a triangle is increased by 30%. What can be the maximum percentage increase in length of the base so that the increase in area is restricted to a maximum of 90%?MediumSolve →Q8The price of salt is reduced by 50% but, in spite of the decrease, Aayush ends up increasing his expenditure on salt by 50%. What is the percentage change in his monthly consumption of salt?MediumSolve →Q9At an election, the candidate who got 60% of the votes cast won by 200 votes. Find the total number of voters on the voting list if 66.67% people cast their vote and there were no invalid votes.MediumSolve →Q10The population of Gotham is 50,000 at this moment. It increased by 20% in the first year. However, in the second year, due to immigration, the population dropped by 10%. Find the population at the end of the third year if in the third year the population increases by 30%.?MediumSolve →

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