Percentages practice problems - page 9 of 110
Number of problems found: 2193
- Tavarius
Tavarius scored an 85% on his math exam. If there were 20 questions on the exam, how many did he get correct?
- Nelson
Nelson has a weekly salary of $445.86 and is self-employed. Use 7.51% for not self-employed and 12.3% for self-employed for the Social Security Tax. How much Social Security should be withheld?
- The sum 41
The sum of 640.00 was deposited in the first bank for five years, and the interest given was 160.00. Find the rate.
- Full value
If 7 %=16000000, what will be 100%?
- A retailer
A retailer buys an item for $2.16 and sells it for $2.70. What is the percent increase in price?
- Exp decay
An element with a mass of 780 grams decays by 16.3% per minute. How much of the element is remaining after 16 minutes, to the nearest 10th of a gram?
- First year
First-year students enrolled at FEI were determined to be 2,000. Fifty-five percent are electronics students. How many are IT students? (Present your solution plus answer)
- Suppose 12
Suppose in a physics test involving 30 students, and four scored 75%, eight scored 60%, twelve scored 50%, and six scored 30%. Calculate the mean of the group and the standard deviation.
- The loss
The cost is 80. They wanted to sell them for 100. In fact, a year later, they sold it for 60. What is the percentage of loss?
- A tip
Determine a 20% tip for a dinner that costs $65.00.
- The price 6
The price of petrol is set to increase by 5% next month. If the current fuel price is R9,00 per liter, what will the new petrol price be next month?
- The balance 2
If your balance at the end of 4 years is 50000, at a 5% interest rate, What was your original investment?
- Years 3
How long will it take for a given sum of money to triple itself at 20% annual compound interest?
- 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.
- A student 5
A student took the measurements of his classroom and gave the width as 7m and the length as 9m. If there is an error of 2 percent in measurement, determine the greatest value of [X+Y]/X if X and Y are the width and length of the classroom, respectively. G
- Colour
The square is divided into 100 squares. If you needed to color 49%, how many squares would you color?
- 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.
- Joy deposited
Joy deposited the sum of 50,000 in her bank account. After 5 months, she made another deposit of 125,000 and 6 months a lap before the withdrawal of 12,000 nairas. If the interest rate is 5% per annual, calculate how much she should have in her account.
- A piece 11
A piece of wood is 220cm long. If 66cm is cut away from the wood, what percentage remains?
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