Number of problems found: 674
Dhea is biking for 20 mins every day before going to school. She looked at her watch and she already achieved 10 hours of biking. How many days in total did she achieve?
- Trip cost
In September, the trip cost CZK 12,000. How many crowns did the trip cost in June of the same year, when they have since reduced the price by a quarter and by another CZK 1,200?
- Fraction to decimal infinite
Determine which digit is at 1000th place after the decimal point in the decimal expansion of the fraction 9/28.
- Clock mathematics
If it is now 7:38 pm, what time will it be in 30,033,996,480 minutes from now?
- The same
The same number of rabbits and hens are running on the farm. 468 feet run around the yard. How many rabbits and hens do they have on the farm?
- An airplane
An airplane flies 1440 km in 2 1/4 hours. What is its average speed in km per hour?
- 120 nuts
Divide 120 nuts in a ratio of 4: 6.
- Milk crates
A farmer sells milk in crates that hold 15 bottles. She has 34,125 bottles of milk. How many crates can the farmer fill?
- Volume per time
How long does fill take for a pump with a volume flow of 200 l per minute fill a cube-shaped tank up to 75% of its height if the length of the cube edge is 4 m?
- Square gardens
The gardening colony with dimensions of 180 m and 300 m is to be completely divided into equally large square areas with the largest possible area. Calculate how many such square areas can be obtained and determine the side length of the square.
- An electrician
An electrician needs 1 1/3 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 6 2/3 rolls of wire?
Peter is ill and must take medication three times a day for one tablet. For how many days is a pack of 30 tablets enough for him, when on the third day he takes one tablet only in the morning and evening?
From two sticks 240 cm and 210 cm long, it is necessary to cut the longest possible pegs for flowers so that no residues remain. How many pegs will it be?
- The wooden
The wooden block measures 12 cm, 24 cm, and 30 cm. Peter wants to cut it into several identical cubes. At least how many cubes can he get?
How many bricks are needed for a wall 14.5 m long, 2 m high and 45 cm thick, if 285 bricks are needed for one m ^ 3 wall?
- Into box
How many cubes with an edge of 2.5 cm fit into a box measuring 11.6 cm; 8.9 cm and 13.75 cm?
Zhiwei wants to divide 19 liters of water equally into 6 pots. Find the volume of water in each pot?
Jagdeep had a strip of paper measuring 1.8 m. He cut it into 4 equal strips. How long is each shorter strip of paper?
- Borrowing bicycle
Jakub lent a bicycle to friends who wanted to ride it. For a three-hour bike ride, Jakub received 2 chocolates. Yup. If you wanted a bike for 2 hours, you had to give Jakub 12 candies. Peter gave Jakub 1 chocolate and 3 candies. How long can Peter ride Ja
- Divisible by nine
How many three-digit natural numbers in total are divisible without a remainder by the number 9?