Equations practice problems - page 173 of 241
Number of problems found: 4815
- Working together on project
Two employees did working on the project. First, make it alone for 20 days, the second for 24 days. How many days will it take to complete the project if five days they work together, then first will take two days holiday, and after returning they complet - Elements
If the number of elements is decreased by two, the number of permutations is decreased 30 times. How many elements are? - Rectangle
The rectangle has a perimeter of 75 cm. The diagonal length is 32.5 cm. Determine the length of the sides. - Tadeus
Tadeus and Jolana have a total of CZK 15. Jolana has half that of Tadeus. Nevertheless, Jolana has three coins and Tadeus 2. Which coin does Tadeus have, and which Jolan? - Money subtraction
How often can you take 5 euros from 30 euros until you have nothing left? - Pizza cost
The pizza and fries cost € 18. French fries are € 8 cheaper. How much do two pizzas cost? - Plane meeting
Regular planes fly between the two airports 690 km away. The aircraft takes off from the first airport at 6:30 am at an average speed of 60 km/h faster than the aircraft taking off at 7.00 am from the second airport. The planes always meet at 9.00 am. At - Walking distance
The tourist traveled 78 km in three hours. For part of the journey, he traveled by bus at an average speed of 30 km/h, and for the rest, he walked at an average speed of 6 km/h. How long did he walk, and how many kilometers did he walk? - Combined savings
Pavel has half as much savings as Standa but the same savings as Radek. Standa saved CZK 120 less than Radek. What savings do all three boys have together? A) less than CZK 600 B) CZK 600 C) CZK 960 D) 1200 CZK E) another number of crowns - Sum of money On a certain sum of money, invested at the rate of 10% compounded annually, the difference between the interests of the first year and the third year is 315. Find the sum.
- Garden mowing
Eva will mow the garden in 4 hours, and Doubravka will cut it in 3 hours. How long would it take to mow the garden if Eva started an hour earlier and only Doubravka joined it? - Trapezium
The lengths of parallel sides of a trapezium are (2x+3) and (x+8), and the distance between them is (x+4). If the area of the trapezium is 590, find the value of x. - Worker time
Two workers completed the work in 12 days. If the other worked ten days longer than the first, how long would everyone work alone? - Natural number
A double of the unknown natural number is 18, less than five times that. Find this number - Garden fencing The rectangular flower garden fencing is 57.6 m long. If you know its dimensions are in a 5:7 ratio, find them.
- The farmer
The farmer brought potatoes to the market. In the first hour, he sold two-fifths of the potatoes brought in. He sold five-sixths of the remaining potatoes in the second hour, and in the third hour, he sold the last 40 kg of potatoes. 1. Express a fraction - Coach
The average age of 24 players and a coach of one team is 24 years. The average age of players without a coach is 23 years. How old is the coach? - Two sisters
Two sisters together have 54 CDs. 6/8 CDs have a younger sister and are equal to 3/5 of CDs older sisters. How many CDs has each of the sisters? - Subject popularity
In the mini-survey of our class about the popularity of individual subjects, it was shown that 11.1% of pupils like mathematics, 18.5% like languages, 14.8% of pupils like physical education, and the remaining 12 pupils have several favorite subjects. How - Workers Nine workers dig a canal 120 meters long for eight hours. For how long would digging five workers' canals be 200 meters long?
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