Equations practice problems - page 181 of 250
Number of problems found: 4996
- 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 Rado. Standa saved CZK 120 less than Rado. 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
Eve can mow a garden in 4 hours, and Deborah can mow it in 3 hours. How long would it take to mow the garden if Eve started one hour earlier and then Deborah joined her? - 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? - Socrates
Partner schools in Žilina and in Košice agreed on an exchange stay. Pupils from Košice were to go for a week to Žilina, and pupils from Žilina were to go to Košice. For the stay the pupils travelled by bus. They agreed on the same route, so that they woul - 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 of the younger sister's CDs equal 3/5 of the older sister's CDs. 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 120-meter-long canal in eight hours. How long would it take five workers to dig a 200-meter-long canal? - Way
If the current way to school were 2 km shorter, then if Milo swiped one-half, he would already have one-quarter of the way to school behind. How long is Milo's route to school? - Lucky number
Philip multiplied the number 4 twice in a row by his lucky number. He added 4 to the result and got a result of 200. What is Filip's lucky number? - Worker payment Three workers received €2,850 for the work done. They divided them according to the time worked so that the first got 20% less than the second and the third €50 more than the second. How many euros did the second worker get?
- Combinations
How many elements can form six times more combinations of the fourth class than the combination of the second class? - Triangle ABC v2
The area of the triangle is 12 cm². Angle ACB = 30º , AC = (x + 2) cm, BC = x cm. Calculate the value of x. - Ruler
Peter is looking at John over a ruler that keeps at an arm's distance of 60 cm from the eye, and on the ruler, John measured the height of 15 mm. John is 2 meters high. How far from Peter stands John?
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