Themes, topics - math word problems - page 138 of 167
Number of problems found: 3330
- Spray - mixture
4 per mille of active ingredient is needed per 6 liters of water to prepare sprays. How many milliliters of active substance do we add to the sprays? - Circumference 3991
The circumference of the vehicle's front wheel is 1.44 m, and the circumference of the rear wheel is 2.56 m. How long did the vehicle travel when the front wheel made 560 more revolutions than the rear? For the unknown, choose the number of revolutions of - Republic 3988
The Czech Republic has an area of 78866 km². If this area were the area of a square, it would have a side of 280.83 km. How long before we go around this square at 50 km/h? - Material 3986
There are 1.2 per mille of gold in the rock. How many grams of gold will they get from 45 tons of raw material? - Active substance There are 5 ml of active substance in a 600 ml spray. How much is it per mille?
- Resistivity 3983
What was the length of an iron wire with an area of 3cm² if its resistance was 15 ohms? Iron (Fe) resistivity is 0.0996 x 10 at -6 Ohm/meter. - Interest rate
At what annual interest rate would we get an interest of 60 euros on a deposit of € 6,000 for three months?
- Cheetah
The cheetah elapses 150 m for 5 seconds, the eagle reaches speeds up to 230 km/h, and the dolphin swims 1.2 km per minute. Which animal is the fastest and slowest? The results are written as meters per second (m/s). - Diameter 3962
The diameter of the atomic nucleus is 10 to -12cm. How many atoms would fit on a 1 mm line if they could be arranged close together? - Density 3961
The volume of the Sun is 1.4x10 per 18 km cubic, and the weight is 2x10 per 30 kg. What is the average density? (in kg/m cubic) - Direction 3958
In the direction of Hradec Králové, a car left Prague at 8 hours at a 50 km/h speed. At 8 hours and 30 minutes, another car followed him at an average 70 km/h speed. How long will it take to catch up with the first car? - Temperatures 3942
The following temperatures were measured every 6 hours from 6 to 24 hours: -2.2 C, 2.1 C, 5.4 C, 3.9 C, 0.7 C, -1.9 C, -3.8 C. Calculate the average temperature from 6 to 24 hours. - Destination 3931
The car left at 9:00 AM and arrived at the destination 144 km away at 11:00 AM. What average speed did he move? - Z9-I-4
Kate thought of a five-digit integer. She wrote the sum of this number and its half in the first line of the workbook. Write a total of this number and its fifth on the second line. She wrote a sum of this number and its one nines on the third row. Finall - Tunnels
Mice had built an underground house consisting of chambers and tunnels: • each tunnel leading from the chamber to the chamber (none is blind) • from each chamber lead just three tunnels into three distinct chambers, • from each chamber, mice can get to an
- Average speed
What is the average speed you have to move around the world in 80 days? (Path along the equator, round to km/h). - 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? - Pet store
They sold fish from one aquarium from the breeding product (Zverimex). Ondrej wanted half of all the fish, but to avoid cutting any fish, he got half the fish more than he wanted. Matej wanted half of the remaining fish, but like Ondrej, he got half the f - Three children
Three children eat eight chocolates in 6 days. How many chocolates do six children eat in 18 days? - Runner 2
Marian runs 12 meters in 8 seconds. How far would Marian run for 70 seconds if he still runs at the same pace?
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