Equations practice problems - page 42 of 248
Number of problems found: 4950
- Tank inlet filling
The tank is filled through three openings, A, B, and C. The simultaneously open inlets A and B are filled in 1 hour, inlets A and C in 45 minutes, and inlets B and C in 1.5 hours. How long would it take to fill each inlet separately? - Cactus violet sales
At the flower festival, young growers sold cactus plants for CZK 12 and indoor violet plants for CZK 9. They sold a total of 47 pieces of flowers of both types and received CZK 501. How many cacti and how many violets did they sell? - MO Z6-I-3 2022
Magda cut out two identical isosceles triangles, each of which had a perimeter of 100 cm. First, from these triangles she formed a quadrilateral by placing them together by their legs. Then from them she formed a quadrilateral by placing them together by - Tourist distance time
The tourist walked 1/4 of the way at a speed of 4.5 km/h, 2/5 at a speed of 4 km/h, and the remaining 7 km at a speed of 5 km/h. How many kilometers did he run, and how long did the journey take him? Calculate the time in a fraction. - In the dairy 2
In a dairy they have two lines for filling milk cartons. The more modern line is one and a half times faster than the old line. When both lines work simultaneously, they fill the usual daily amount of milk cartons 5 hours earlier than when only the old li - Equation fraction solving
Calculate the equation and do the test. (x+6)/2 - (x+4)/4 = (2x+1)/3 – (x-4)/6 - Bus car pursuit
At 7:30 AM, the bus left at a speed of 45 km/h, and at 8:00, a car behind it started at 65 km/h. Where and when did they meet? - Car meeting location
Cars left two places 520 km apart simultaneously at speeds of 30 km/h and 50 km/h. Where and when will they meet? - Vitamin doses
Children and adults take the recommended daily dose of vitamins throughout the year. According to the package insert, the recommended daily dose for a child is half that of an adult. Two adults together consume one pack of vitamins in 30 days. How many da - Soňa Elvíra money
Sonya and Elvira have 20 CZK together, Elvira and Philomena have 15 CZK together, and Sonia and Philomena have 19 CZK together. How many CZK does Sonya have, how much Elvira, and how much Filomena? - Barrel filling time
The water barrel filled to 2/3 of its volume in 42 minutes. How long will it take to fill the barrel? - Beetle cabbage pursuit
Theodore the beetle set off from the house towards the cabbage leaf at a 20 m/min speed. Two minutes later, Max the beetle followed him at 24 m/min speed. They both came to the cabbage leaf at the same time. How far was the cabbage leaf from their house? - Dance course participants
Two hundred fifty-two participants signed up for the classical ballroom dance course. There were 2 times more girls than boys. How many girls and how many boys applied? - Basket candy ratio
There are lollipops, chocolates, and candies in the basket. The number of lollipops and chocolates is in the ratio of 2:3, and the number of chocolates and candies is in the ratio of 4:5. There are 15 fewer candies than lollipops and chocolates combined. - Examples on solutions
Example no. 1: For the preparation of a 2% solution we need 20 l of water. How many ml of preparation do we use? Example no. 2: How many litres of water/preparation do we need for the preparation of 20 litres of a 2% solution? Example no. 3: How many litr - Dana book pages
Dana read the book in 4 days. On the first day, she read a third of the book; on the second day, a sixth of the book; on the third day, half of the remaining pages. She still had 30 pages left on the last day. How many pages was the whole book, and how ma - In 20
In 20 years, the father will be twice as old as he was five years ago. How old is a dad now? - Plant employee total
Three hundred forty-four women are employed at the GUMÁR plant. The remaining 57% of employees are men. How many employees does the entire GUMÁR plant have? - Highway construction weeks
The first group of construction workers would build a certain section of highway in 15 weeks, and the second group would make it in 10 weeks. After four weeks of working together, the second group was dismissed, and only the first group continued to work. - Bridge pillar length
One-fifth of the bridge pillar is embedded in the ground. One-third of its length is in the water, and 1.4 m protrudes above the surface. Determine the length of the bridge pillar.
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