Q: In a mixture of petrol and Kerosene petrol is only 99 litres. If this same quantity of petrol would be presented in another mixture of petrol and Kerosene where the total volume would be 198 litres less than the actual mixture then the concentration of petrol in the actual mixture would have been 13.33% points less than that of the new mixture. What is the concentration of petrol in the actual mixture?

Q: Money invested at x% compounded annually triples in value in every 112/x years. If $2500 is invested at 8% compounded annually, what will be its worth in 28 years?

Q: By reducing the entry fee by 35% in a park, the number of people coming to the park increases by 40%, then the percent increase or decrease in the income from the entry fee is

Q: During the pre-season practice, Vidit played 60 games with different players from different countries. Vidit was able to win 30% of the games he played. He then picked up the pace and had a good winning run to make his average win percentage to 50. How many games he must have won in a row to attain this average?

Q: Rs.2189 is divided into 3 parts such that their amounts after 1, 2 and 3 years may be equal respectively and interest being 4% in all cases. The smallest part is

Q: A batsman scored 120 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets?

Q: Shyam Lal takes a loan of Rs. 10500 at 10% p.a. compounded annually which is to be repaid in two equal annual instalments. One at the end of one year and the other at the end of the second year. The value of each instalment is :

Q: ICICI lent Rs. 1 lakh to captain Ram Singh @ 6% per annum of simple interest for 10 years period. Meanwhile, ICICI offered a discount on the rate of interest for the armed forces. Thus the rate of interest ICICI decreased to 4%. In this way, Ram Singh had to pay a total amount of 1.48 lakh.After how many years Ram Singh got a discount on the rate of interest?

Q: A man invests Rs.6000 for 3 years at 8% p.a. compound interest reckoned yearly. Income tax at the rate of 10% on the interest earned is deducted at the end of each year. what the amount at the end of the third year (round off the answer to the closest integer)?

Q: Rs.200,000 was invested by Mahesh in an FD @ 10% pa at CI. However every year he has to pay 20% tax on the CI. How much money does Mahesh have after 3 years?

Q: The monthly income of Ranjith is Rs. 28000 and his savings is Rs.Y. When his monthly income is increased by 20% and expenditure is decreased by 10%, then his savings become Rs. 19200. What is the value of Y?

Q: In an election of 3 candidates A, B and C, A gets 50% more votes than B. A also beats C by 1,80,00 votes. If it is known that B gets 5 percentage points more votes than C, find the number of voters on the voting list given that 90% of the voters on the voting list voted and no votes were illegal.

Q: A man borrows Rs. 4000 from a bank at 7 1/2% compound interest. At the end of every year he pays Rs. 1500 as part payment of loan and interest. How much does he still owe to the bank after 2 such annual payments?

Q: A sum of money in 3 years becomes 1736 and in 7 years it becomes Rs.1988. What is the principal sum where a simple rate of interest is to be charged?

Q: A man’s wage was decreased by 50%. Again, the reduced wage was then increased by 50%. What is his overall gain/loss (in %)?

Q: The compound interest on a certain sum at a certain rate of interest for the 2nd year is Rs. 2,200 and for the 3rd year is Rs. 2,420. Find the principal and rate of interest.

Q: Manoj gives 10% of his money to his eldest son, he gives 20% of the remaining to his youngest son, and he gives 15% of the remaining to a school for poor boys. Still, he has Rs. 1224. Find his total sum.

Q: 500 kg of ore contained a certain amount of iron. After the first blast furnace process, 200 kg of slag containing 12.5% of iron was removed. The percentage of iron in the remaining ore was found to be 20% more than the percentage in the original ore. How many kg of iron was there in the original 500 kg ore? 

Q: On a certain sum of money, compound interest earned at the end of three years is Rs. 1456. Compound interest at the end of two years is Rs. 880. Compute the principal invested.

Q: The compound interest on a sum of money for 2 years is Rs.832 and the simple interest on the same sum for the same period is Rs.800. The difference between the compound interest and simple interest for 3 years is

Q: Initially, a shopkeeper had "x" pens. A customer bought 10% of pens from "x" then another customer bought 20% of the remaining pens after that one more customer purchased 25% of the remaining pens. Finally, shopkeeper is left with 270 pens in his shop. How many pens were there initially in his shop? 

Q: The ratio of the number of boys and girls in a school is 4:1 . If 25% of the boys and 40% of the girls are scholarship holders, the percentage of the students who are not scholarship holders is  

Q: A and B are two fixed points 5 cm apart and C is a point on AB such that AC is 3 cm. If the Length of AC is increased by 6%, the length of CB is decreased by how many % ?

Q: The average earning of each member of the Ambani family is 20% less than the average earning of each member of the Sahara family and the total earning of Ambani’s family is 20% more than the total earning of Sahara’s family. The no of family members in the Sahara is what percent of the no of family members of Ambani :

Q: A candidate scoring 50% in an examination fails by 60 marks, while another candidate who scores 75 % marks, gets 40 marks more than the minimum pass marks. Find the minimum pass mark.

Q: Two mixed schools have 90 and 120 children respectively. In the first 60% and in the second 50% of the children are boys. What % of the children in the two schools are boys ?

Q: How much percent more than the cost price should a shopkeeper mark his goods, so that after allowing a discount of 12.5% he should have a gain of 5% on his outlay?

Q: Population of China and India in 1960 is 70 crore and 50 crore respectively. The rate of increase of population is 10% per decade for both the countries. But population growth in China is arithmetic while population growth in India is geometric. Find population difference (Crore) of 2 countries in 1980.

Q: A certain sum of money amounts to Rs.1300 in 2 years and to Rs. 1525 in 3.5 years. Find the sum and the rate of interest.

Q: Jagran group launched a new magazine in January 2004. The group printed 10000 copies initially for Rs. 50000. It distributed 20% of its stock freely as specimen copy and 25% of the rest magazine are sold at 25% discount and rest at 16.66% discount whose printing price was Rs.12 per copy. What is the overall gain or loss in the first month's issue of magazine, if the magazine could not realize the income from advertisements or other resources?