Basic operations and concepts - math word problems - page 247 of 321
Number of problems found: 6415
- Borrowed 82069
You borrowed €2000 for 3 months. What amount must you pay back if the lender charges a 15% interest rate per annum? - Percentage 69704
Katka had € 660 in the bank, for which she received interest of € 33 at the end of the year. What percentage was the interest? - Percentage 37141
Mix 0.8 kg of sugar into 2.4 kg of water. What percentage of sugar solution do we get? - Deposit 28541
After a year of saving, a deposit of 500 euros, she had 512 euros. At what rate? - Inspectors 19633
Five inspectors will catch an average of 70 black passengers in 6 days. How many black passengers are caught by nine inspectors in 10 days? - Filling 15983
Five 1800hl filling pumps in 3 hours for how long does a 4hl filling 1800hl tank? - Distance 13311
On what scale is the map drawn? A 25 cm long line shows the actual distance of 1250 km. - Identical 5362
120 hl of water flows out of the tank through 4 pipes in 16 hours. How much water flows through 5 identical pipes in 14 hours? - Efficiency 4073
Determine the efficiency of a vacuum cleaner with a power input of 1.2 kW when the suction power is 360 W. - Accepted 3423
The material for 83 masons of the company is enough for 12 days. How many days will this supply be enough for them if the company has accepted six more masons? - Non equivalent ints
Two n-digit integers are said to be equivalent if one is a permutation of the other. Find the number of 5-digit integers such no two are equivalent. If the digit 5,7,9 can appear at most one, how many non-equivalent five-digit integers are there? - Mr. Brown
Mr. Brown invested 15,000 euros in the bank for an annual term deposit. After the first year, he gained 600 euros. What was the annual interest rate of his deposit? - 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? - Five pumps
The water tank is filled with two pumps in 48 minutes. How long would it take to fill it with five same pumps? - Driver
I drive at an average speed of 70km/h. I drive 10 thousand km. How long did it take me? - Sea water
One tonne of seawater contains 25 kg of salt. How many tonnes of seawater needs to be evaporated to obtain 1 tonne of salt? - Efficiency
What is the power output of a kettle 2 kW with an efficiency of 90%? - Two monuments
The distance between two historical monuments on a map with a scale of 1:500000 is 48 mm. Find the actual distance between these monuments in km. - Scale 3
Miriam's room is 3.2 meters wide. It is drawn by a line segment length of 6.4 cm on the floor plan. On what scale is the plan of the room? - Road repair
Road repair took 13 days for 39 workers if they worked 5 hours a day. How many days take to repair the same road 24 workers if they work 7 per day?
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