Basic functions - practice problems - page 9 of 311
Number of problems found: 6215
- The price 8
The price of a commodity has decreased by 10%. What is the percentage by which it should then be increased to get the original price? - I have 2
I have $907 to pay 13 people. Five people will receive half of what the other 8 people will receive. How much will the payments to each person be? - The ages 3
The ages of A and B are in ratio of 5:4. Three years hence the ratio of their ages will become 11:9. What is the present age of B? - Failed in examination
In an examination, 20% of total students failed in history,15% failed in English and 5% of total number of students failed in both subjects. Find the percentage of total number of students who passed in both the subjects.
- Direct proportional
If m is proportional to n and m=5 when n=4, then what is the value of m when n=18? - Test and exam
1100 boys and 700 girls appeared in a test. If 42% of boys and 36% of girls passed, then find the percentage of students who failed. - My grandfather
My grandfather was 8 times older to me 16 years ago. He would be 3 times of my age 8 years from now. What was the ratio of our ages 8 years ago? - Cost and sell price
A wholesaler sold items at a profit of 20% of the sales, which was a profit of P52.80. What were the cost price and selling price of the item? - Cu ore
An ore contains 5% copper. How much ore is required to obtain 400 grams of copper?
- Ann and Susan The difference between the present ages of Ann and Susan is 6 years. After 4 years ratio will be 3:4. What can be the present age of Susan?
- Students 48
If 80% of the students of a school are boys and 225 are girls, find the number of all students. - An examination
In an examination 65% students passed in English and 56% in mathematics. And 25% failed in both the subjects. If 414 passed in both the subjects, then find the total number of students. - Numbers at ratio 2
Two numbers are in the ratio 3:5. If each number is increased by 10, the ratio becomes 5:7. Find the sum of the numbers. - The ratio 13 The ratio of boys to girls in Mr. Hakeem's class is 6:4. If there are 18 boys, how many girls are there?
- Football and cricket In a school 40% of the students play football and 50% play cricket. If 18% of the students neither play football nor cricket, then find the percentage of the students playing both.
- The population 4
The population of a city is decreasing at a rate of 2% per year. The population in 2002 was 700,000. What would be the population in 2009? - A fruit 4
A fruit seller had some apples. He sells 40% apples and still has 420 apples. How many apples originally he had? - Palidrom A number consists of two digits whose product is 24. When 18 is subtracted from the number, the digits change their places. Find the number.
- An election In an election between two candidates, one candidate secured 43% of the total votes polled and lost the election by 4900 votes. Find the total number of votes polled.
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