Percentages + multiplication - practice problems - page 7 of 11
Number of problems found: 203
- Calculate 7483
Calculate the interest and rum (APR, annual interest rate) is 2.5% and the principal 50,000.
- Decomposed 7258
The number 135 can be decomposed into the product of two factors, so one will be three greater than 40% of the other. What are these factors?
- Boys and girls
There are eight boys and nine girls in the class. There were six children on the trip from this class. What is the probability that: a) only boys went on the field trip b) just 2 boys went on the field trip
- Mixed with percentages
Calculate 33 1/3% of 570.
- Inverted nine
In the hotel Inverted Nine, each hotel room number is divisible by 6. How many rooms can we count with the three-digit number registered by digits 1, 8, 7, 4,9?
- Fruit tea
Tea contains 7% of fruit components and 12% of sugar in this component. How many percent of sugar is represented in the whole tea?
- Associative law multiplication
You obtain a 20% discount in a warehouse, but you must pay a 15% sales tax. Which would you prefer to have calculated first: discount or tax? Explain. (result write as: 1 = first discount, 2 = first tax, 3 = no matter what first)
- The ball
The ball was discounted by 10 percent and then again by 30 percent. How much percent of the original price is now?
- Percentage 5834
There are 1.5 times more women than men in the theater. What percentage of women are more than men in the theater?
- Increased 5778
The price of yogurt increased by 20%, and the number of yogurts sold fell by 10%. How have yogurt sales changed?
- Probability 5576
Jana rolls two dice at the same time. What is the probability that she will score a total of four points?
- Rate or interest
At what rate percent will Rs.2000 amount to Rs.2315.25 in 3 years at compound interest?
- Missing pupils
There are 32 pupils in the class. How many pupils were missing from school if 12.5% were absent?
- Improvements 5370
After technical improvements, the radio receiver, whose price was 220 €, was auctioned for 20%. He was later reduced by 15% of the new price. What was its final price?
- Original price
The shop reduced the car to 85% of the original price. It now costs € 6,375. How many euros was the original price higher?
- Highway repair
The highway repair was planned for 15 days. However, it was reduced by 30%. How many days did the repair of the highway last?
- Obtained 5353
About 50% of the pulp is obtained from wood and about 65% from paper. How many tons of paper can we make from 150 tons of wood?
- 3 years savings
Simple interest problem. Tereza has deposited CZK 100,000 in the bank with an annual interest rate of 1.5%. Interest is added each year and left aside. How many CZK (crowns) will you have in total after three years?
- Two aces
From a 32-card box, we randomly pick 1 card and then two more cards. What is the probability that the last two drawn cards are aces?
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