List of practice Questions

Two numbers X and Y leave a remainder of 17 and 7 respectively when divided by 23. If the sum (X + Y) is divided by 23, then what would be the remainder?
By selling 70 ball pens for 120 a retailer loses 40%. How many ball pens should he sell for 116 so as to make a profit of 40%?
The difference of two numbers is 30% of their sum. Find the ratio of the larger number to the smaller number.
A man buys certain number of bananas at 8 per rupee and same number at 18 per rupee. He mixes them together and sells at 10 per rupee. The approximate gain or loss percentage is
A wheel of car makes 3900 revolutions in 2 hours. If the radius of the wheel is 21 cm, then speed of the car is
In a triangle ABC, D is the midpoint of BC. If AB = 8 m; AC = 10 m and DB = 6 m, then the approximate length of AD is
Few apples were bought at the rate of 3 apples for 2, and sold at the rate of 2 apples for 3. What is the gain percentage?
A man borrowed 10,500 at 10% compound interest. How much he has to pay annually at the end of each year, to settle his loan in 2 years?
A merchant bought 150 eggs, out of which 45 eggs were broken. He sold the remaining eggs at the rate of 8.80 per dozen and thus made an overall profit of 10%. What was his total investment?
If the average of the first 9 integers in a series of 15 consecutive odd integers is 41, then what is the average of all the 15 odd integers in the series?
A boy was asked to calculate\((\frac{2}{7})th\)of a certain number. Instead of multiplying the number by\((\frac{2}{7})\)he divided it by\((\frac{2}{7})\). If his answer exceeded the correct answer by 90, then what is the number?
Amit ate\(\frac{1}{7}\)of a cake. Ajay ate\(\frac{1}{5}\)of what was left. What fraction of the cake was left uneaten?
In how many years will 24,000 amounts to 31,944 when invested at the annual interest rate of 10% compound interest compounded annually?
The average height of a group of 7 friends is 182 ems. If a person with a height of 170 cm leaves the group, then what would be the new average height?
Find the approximate value of \(2.161 + 3.2 - 4.33 + 5.1\times3.23\)
What is the difference between Compound interest and Simple interest on 10,00,000 for 3 years at 4% per annum rate of interest?
If x means\(+, -\)means\(x , +\)means\(+\)and\(+\)means\(-\)than what is the value of\((5 - 3 + 1) \times16 + 1?\)
A can do a job in 9.8 days and B can do it in 14 days. They work together for 3.5 days, and A goes away. In how many days will B finish the remaining work?
Find the approximate value of\(5.931 \times 3.61 + 2.19 - 7 \frac{1}{2}\)
84,808 becomes thrice itself in 4 years at certain rate of interest. In how many years will it become 9 times itself at the same rate of compound interest?
The ratio of the number of boys to girls in a school with 660 students is 8 : 3. How many more girls should be admitted to the school to make the ratio 1 : 1?
The average weight of A, B and C is 80 kg. If the average weight of A and B be 74 kg and that of B and C be 84 kg, then what is the weight (in kg) of B?
A, B and C can do a piece of work in 40, 60 and 120 days respectively. In how many days can A, B and C together finish the work?
A person crosses a 1000 m long bridge in 15 minutes, What is his speed in km per hour?
The salary of a person is first decreased by 25% and then the decreased salary is increased by 25%. What is the net percentage change in his salary?