Basic operations and concepts - practice problems - page 3 of 332
Number of problems found: 6631
- Percents 4
900 to 1200. What is the percentage increase? - A pet 2
A pet store has 15 birds and 75 fish. In the simplest form, what is the pet store's ratio of birds to fish? - Lorelai
Lorelai scored 15 points on her pretest. On her second try, she got 75 points. What is her percent increase? - Field trip
There were 40 students signed up to go on a field trip on the day of the trip, and only 28 students were present. What percent of the students showed up for the field trip? - Tree's virus
An arborist examined trees in an orchard to see if they were infected with a virus. 42 out of 75 trees were infected with the virus. What percentage of the trees were infected? Write your answer using a percent sign (%). - A basketball
A basketball team won 11 out of 20 games. What percent of its games were won by the team? - Percent down
$165.00 is what percentage less than $247.50? - Percent base
75% of 40 is 30. What is the base? - Percent change 2
98.6 to 101.2; what is the percent change? - Price 11
The price increased from $2.56 to $3.76. What is the percentage increase? - The cost price
Find the cost price of a piano that was sold at $12,000, on which a profit of 20% was made on cost. - Pets stores
Pets Plus and Pet Planet are having a sale on the same aquarium. At Pets Plus, the aquarium is on sale for 30% off the original price, and at Pet Planet, it is discounted by 25%. If the sales tax rate is 8%, which store has the lower sale price? How much - Glue strength
At 40 °C, it takes 3 hrs to get 125% glue strength. How long does it take to get 100% at 50 ˚C? The higher the temperature, the faster it cures the glue. - Bulk purchase rabat
You can purchase a gross (12 dozen) of 1-inch tape at 93 cents per roll. Individual rolls of the same tape are $1.02 each. Describe the amount (in percent) that you will save if you take advantage of buying tape in bulk. - Anneta
Anneta wants to buy a piece of land for farming; she wants to use 1/3 of the land to plant cocoa, 2/7 for a Palm plantation, and the rest for a vegetable plantation. 1). Find the fractions of the land used for vegetable plantation 2). If one wants to use - A man 15
A man owns a piece of land worth 0.6 million. He taxed in 3/4 of its value at the rate of ₱7.00 per 1000. How much is he paying for the tax on his property? - Eva 46 Eve works as a sales clerk. She is paid a salary of 3000 a week plus a 2% commission on sales over 4000. Find her gross pay for a week in which her sales are 9500.
- Bag of popcorn
The average cost of a bag of popcorn at the movie theater was $3.50 in 1995 and $4.75 in 2015. Find the percent of change in the price of a bag of popcorn from 1995 to 2015 and classify it as a percent increase or percent decrease. - Gallons of gas
Sara drives 171 miles on 7.6 gallons of gas. She uses this information to calculate how many miles per gallon she can drive. Using this result, how many miles can Sara drive on 12.5 gallons of gas? - Dogde Caliber
The petrol kilometers M (unit: kilometers per liter) of the Dodge Caliber car is modeled by the function: M(s) = - 1/28 s² + 3 s- 31 What is the car's best petrol kilometers, and what speed is attained?
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