Percentages + rounding - practice problems - last page
Number of problems found: 67
- Fertilizer
Mr. Gherkin uses for fertilization 10% solution of fertilizer. 5 liters of it still left. How much water must be added to the solution to make only the 7% solution? - Ray
Light ray loses 1/14 of brightness passing through a glass plate. What is the brightness of the ray after passing through 10 identical plates? - Clock
How many times a day do hands on a clock overlap? - Server
Calculate how many average minutes the web server is unavailable a year if the availability is 99.9%.
- Inflation
What is better for people (employees)? ... - Dice
How many times must you throw the dice, and the probability of throwing at least one päťky was greater than 50%? - Greek railwayman
Lewis works for the Slovak railways since 2000. His salary is 950 €. His colleague, Evgenias works in the Greek State Railways from 1984. Evgenias earns 5700 € per month. Calculate: a) how many times does Evgenias earn more than Lewis? b) how many times d
We apologize, but in this category are not a lot of examples.
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