Basic operations and concepts - math word problems - page 287 of 332
Number of problems found: 6633
- Card sum puzzle
On the table lay eight cards with the numbers 2, 3, 5, 7, 11, 13, 17, and 19. Frank chose three cards. He added the numbers on them and found that their sum was 1 more than the sum of the numbers on the remaining cards. Which cards could have been left on - Fluid
We have vessels containing 7 liters, 5 liters, and 2 liters. The largest container is filled with fluid, and the others are empty. Can you only get 5 liters and two 1 liter of fluid by pouring? How much pouring is needed? - The tangent of the hyperbola
Write the equation of the tangent of the hyperbola 9x²−4y²=36 at the point T =[t1,4]. - Diet liquid solid
The ratio of the number of liquids to the solid components of the diet in (kg) should be about 7:2. Show in a rectangular coordinate system the dependence of the amount of a solid food component on its total amount. - Six pipes
6 Pipes are required to fill a tank in 1 hour 20 minutes. How long will it take to use only five pipes of the same type? Give your answer in hours and minutes. - Freezer volume percentage
The chest freezer has dimensions (w * h * d) 79.5 * 87.6 * 66.5 cm. Its useful volume is 210 liters. What percentage of the total freezer volume is the usable volume? - Hectoliters in a tank
The block tank held 288 hectoliters of water. The bottom dimensions are 12m and 6m, and the depth is 2m. What percent of the tank volume does the water occupy? - Water reservoir
The reservoir shape of a cylinder has a diameter of 8 m and a height of 2.8 m. The device indicates that the reservoir contains 800 hectoliters of water. Calculate how much % of the volume is used. - Horses 6
A farmer bought feed for 6 horses for 5 months. After two months, he sold 2 horses. How many months will the remaining feed last? - Four-digit numbers
Find all four-digit numbers whose decimal notation begins with a 6 and ends with a 2 and is divisible by 24. - Deposit double years
The bank offers interest on the deposit of 4 percent per annum. In how many years will the deposit double? - Solution mixing extent
To what extent do we need to mix 82% and 54% solutions to get a 76% solution? - Two workers
One worker makes a part 4 hours and the second 9 hours later than they would make the same part together. How long does it take for each worker to make the part himself? - Salicylic acid solution
Prepare 600 g of an 8% solution of salicylic acid. - Three painters
One painter would have painted the fence for 15 hours, the second for 12 hours. The plot had to be painted in four hours, so they called the third one, and all worked together. For what time would the third painter paint fence the fence alone? - Equation algebraogram
Solve the equation: oco + ivo = cita How many solutions does the problem have? - Workers needed
Twenty-seven workers did the work in 12 days. In how many days would nine workers do the same job? - Natural number digits
There is no 0 in the decimal notation in natural numbers; there are even numbers or odd numbers, each at least once. Find the number of all k-digit natural numbers. - Change per hour
On Sunday, the temperature was 63 degrees at 2 PM. The temperature was then 72 degrees at 5 PM. What is the rate of change per hour? - Simple Interest Calculation
Calculate the interest and rum (APR, annual interest rate) is 2.5% and the principal 50,000.
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