Themes, topics - math word problems - page 110 of 174
Number of problems found: 3477
- Three Day Hike Distances
Pupils walked a total of 30 km during the three-day trip. On the first day, they ran twice as much as on the third day, and on the second day, they ran 6 km more than on the third day. How many km have they traveled each day? - Clogging
How much distilled water must the pharmacist add to 30 g of a 30% hydrogen peroxide solution to obtain a 3% solution for clogging? - Two friends
Peter can do all his work himself in 6 hours, while Martin can do the same work himself in 8 hours. Peter worked first and was then replaced by Martin, so the whole work was done in 6.5 hours. Calculate how long Peter worked before being replaced by Marti - The cyclist
The cyclist drove from A to B, 60 km away. The first half drove at 30 km/h, and the second at 20 km/h. How long did it take for him? - Light bulb resistance
The resistance of a 40 W light bulb is 10 Ohms. What voltage source is connected to it? What current is flowing through it? - Vinegar mixing
When we mix 70 g water with 50 g 8% vinegar, how many percent of the vinegar solution do we produce? - Aircraft Carrier Acceleration
The runway of the aircraft on the mother ship is 49 m long. Calculate the aircraft's acceleration so that its speed when leaving the ejection device reaches 252 km/h. - Two trains
Through the bridge, long l = 240 m, the train passes through the constant speed at time t1 = 21 s. A train running along the traffic lights at the edge of the bridge passes the same speed at t2 = 9 s. a) What speed v did the train go? b) How long did a tr - Simple Interest Calculation
Calculate the interest and rum (APR, annual interest rate) is 2.5% and the principal 50,000. - Mushrooms
Fresh mushrooms contain 88% water and dried 14% water. How many kilograms of fresh mushrooms should be collected to get 3 kg of dried? - Temperature and volume
The pool with a length of l = 50 m and a width of s = 15 m has a depth of h1 = 1.2 m at the shallowest part of the wall. The depth then gradually increases to a depth of h2 = 1.5 m in the middle of the pool. = 4.5 m walls in the deepest part of the pool. - Workers
Three factory operators produced 480 units in 50 minutes. How many hours worked? I'm trying to prove or disapprove of the idea that the company tells me it's 2.5 hours. So what is right? Thank you, Patricia. - Acid Solution Percentage
The barrel contains 199 liters of 38% acid solution. What percentage of acid is created when we take 61 liters and replace it with the same amount of water? - Car Speed and Distance
The car will cover a certain distance in 3 hours and 20 minutes. If he increases his speed by 10 km/h, he will cover this distance in 2.5 hours. Calculate this distance. - Hexagonal pattern
The figure shows two rows of hexagonal boxes that continue to the right without restriction. Fill in one field with one positive integer so that the product of the numbers in any three adjacent fields is 2018. Determine the number that will be in the top - Three machines
The power of the three machines is 2:3:5. Two most powerful machines produce 400 parts per hour. How many components make all three machines in 3 hours? - A tenth of a second
A frequent competition, even for amateurs, is long-distance running. The running time was measured with a stopwatch with a precision of one tenth of a second. Two other competitors were diligently overtaking each other in the last metres before the finish - Profit from Diluting Juice
In the restaurant, they sell 0.2 l of juice for CZK 14. The waiter cheats the guests by diluting the juice with water at a ratio of 4:1. Water costs CZK 6 for 1 liter. How much extra did the waiter charge when he sold 10 liters of this mixture? - Tractors
Wheel and belt tractors each day plow 8 ha of fields. The wheel tractors would have to work to plow 76 hectares for 12 days. Eight days with the belt tractor together. How many hectares do each day of each tractor? - Water current speed.
Two cities along the river are 100 km apart. The powerboat downstream runs for 4 hours, upstream for 10 hours. Determines the river's current speed.
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