Percentages + multiplication - practice problems - page 4 of 8
Number of problems found: 156
- Hazard game
In the Sportka hazard game, six numbers out of 49 are drawn. What is the probability that we will win: a) second prize (we guess five numbers correctly) b) the third prize (we guess four numbers correctly)? - Hiking trip
Rosie went on a hiking trip. On the first day, she walked 18 kilometers. Each day since she walked 90 percent of what she had walked the day before. What is the total distance Rosie has traveled by the end of the 10th day? Please round your final answer t - A number
A number 5% greater than 75? - Birthday paradox
How large is the group of people so that the probability that two people have a birthday on the same day of the year is greater than 90%?
- Kilograms 23581
How many kilograms is 24% of 30 tons? - The manufacturer
The manufacturer found that 3% of the plates produced had a malfunction. Of the complaint, 75% are first and 25% second. What is the probability of producing first and second-class plates? - The test
The test contains four questions, with five different answers to each of them, of which only one is correct, and the others are incorrect. What is the probability that a student who does not know the answer to any question will guess the right answers to - Percents from percent
How much is 13% of 20% of 500 greater than 8% of 14% of 200? - The university
At a certain university, 25% of students are in the business faculty. Of the students in the business faculty, 66% are males. However, only 52% of all students at the university are male. a. What is the probability that a student selected at random in the
- Reduced 15813
The dress costs 250eur. The dress price was reduced twice, first by 10% and then by 20%. What is the price of the dress? - Calculate 13631
Calculate 1.5 ‰ out of 85% out of 240 - What 11781
What is greater: 2/5 of 10, or 20% of 4000? - Pupils 10781
Of the 660 pupils at the school, 60% are girls. 25% of girls go to grade 7. How many school girls go to 7th grade - Reduce 8344
Reduce the number 400 by 5%
- Lathe
95% of the components manufactured on the lathe comply with the standard, of which 80% of the components are first-class. How likely can we expect a manufactured part to be first class? - Percent change
The length of a rectangle is increased by 25%, and the width is decreased by 10%. By what percent is the area of the rectangle larger than the area of the original rectangle? - Increase 7763
What number do we need to multiply by 20 to increase by 5% - What 7723
What is 17% of 30% of 500? - Additional 7569
The store reduced the original price by 40% during the sale. In addition, he sent an SMS message to his loyal customers with an offer of an additional 15% discount on the price of already discounted goods. Calculate how much the original price was reduced
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