Equations practice problems - page 209 of 251
Number of problems found: 5001
- Unknown number
Determine an unknown number. Its double is equal to its triple less 1.5. - Ascent and descent
The car goes 114 km of track, consisting of ascent and descent at 1 hour 35 minutes. When climbing, it moves at the speed of 48 km/h and downhill at 25 m/s. What is the length of the climb and descent? - Three drivers
Three drivers driving in the same direction found that they had the same amount of gasoline. The first is enough to go 6 km, 4 km, second and third 3 km. Gasoline they divided, so all three just drove to the nearest petrol station. How many km away was a - Numbers at ratio
The two numbers are in a ratio of 3:2. If we each increase by five would be at a ratio of 4:3. What is the sum of the original numbers? - Percent
By what percentage is the number 26.25 less than the number 105? - Even / odd numbers
a / Using variable n, write two consecutive odd numbers. b / The sum of three consecutive odd numbers is 333. What are these numbers? - Fraction equation
Solve the equation: 5-y / 3-6-4y / 5 = 0 - Rectangle area
The circumference of the rectangle is 22 cm, and one side is 3 cm shorter than the other. What is the area of this rectangle? - Father and sons age
The father is 56 years old, and his sons are 25 and 19 years old. In how many years will the father's age equal the sum of his sons' ages? - Feeding and selling
Of the 825 tons, the first part goes for feeding, the second for sale. How many tonnes are intended for feeding if this part makes up 65% of the second part? - Unknown number
Find an unknown number: (9 + y) x 6 = 12 x 7 y =? - Class trip
Until VII. B class girls and 15 boys. All the girls and 13 boys went on a trip. It was a total of 92% of the students in the class. How many girls go to VII? B? - Grandchildren ages
When asked: "How old are your two grandchildren?" the grandfather answers: "If I add their sum to the product of their ages, I get 14." How old are the grandfather's grandchildren? Consider only whole years. - Number puzzle
I think the number. If you multiply it by seven and add 3 to the product, you get 80. What number do I think? - Grandfather age
Dasha asked her grandfather, a good accountant, how old he was. He said: If you add 5 to my number of years and divide this sum by six, you will get the same result as subtracting 6 from my number of years and dividing this difference by five. How old is - Tatra
A tourist climbed from a hut at an altitude of 1,367 m above sea level to the top of a Tatra peak. The trip there and back took him 6 hours and 20 minutes. What is the altitude of the mountain peak if the tourist climbed at 300 metres per hour going up an - Number sequence
Five natural numbers are given, each of which is a triple of the previous one. The largest number is bigger by 1152 than the middle number in this series. From these five numbers, determine the first number. - Fraction addition
Which same integer must we add to the reader and the denominator of the fraction 37/73 so that the fraction equals one-half? - Investment ratio
Three entrepreneurs decided to invest in a joint project in a ratio of 4:5:7. The largest deposit was € 3,430. How many euros did they invest together? - Wood for paper
50% of pulp is obtained from wood and 60% from paper. How much wood is needed to make 100 tons of paper?
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