Numbers - math word problems
Number of problems found: 2312
56 children lined up in groups of three. How many children did not create a trio?
- Father and son
Father and son are together 78 years. Son is 25 years younger than father. How old is the son?
- Addition of Roman numbers
Added together and write as decimal number: LXVII + MLXIV
- Railways - golden parachutes
As often happens in Slovakia habit, the state's financial institution which takes from poverty and gorilas give. A hardworking punishing taxes. Let's look at a short work of director Railway Company ZSSK - Mgr . P. K. : 18 months 'work' as director reduct
Fields go plow two tractors with various performances. The first tractor plows the whole field in 11 hours, the second tractor plows the whole field 19 hours longer. How long take plow the whole field with two tractors?
- Bits, bytes
Calculate how many different numbers can be encoded in 16-bit binary word?
- Exponential equation
Solve exponential equation (in real numbers): 98x-2=9
- Discounts on rail (ZSSK)
The railway company ZSSK offers a discount of 15% (REGIONAL) for 5 Eur/year. Calculate the real discount rate as a percentage, where passengers will travel 19 Eur per week.
- Geometric progression
Fill 4 numbers between 4 and -12500 to form geometric progression.
Once upon a time, tsar owned a money printer and printed and printed. The result of printing money prices went up,in the first year 3.9 %, in the second 6%, in the third 4.7% and in the fourth 5.5%. Then tsar was failed in election. Calculate the average
- Two doctors
Doctor A will determine the correct diagnosis with a probability of 93% and doctor B with a probability of 79%. Calculate the probability of proper diagnosis if both doctors diagnose the patient.
The monkey fell in 40 meters deep well. Every day it climbs 3 meters, at night it dropped back by 2 m. On what day it gets out from the well?
- Logarithmic equation
Solve equation: log13(7x + 12) = 0
- Ladislav in Amsterdam
Laco went (was sent) to a conference in Amsterdam for a reward. The conference fee was € 2536. Calculate how many books Ladislav could buy at the price of 46 and 54 euros if he doesn't want to fill the whole home library, and he can buy only 52 books
- Number ratio
Calculate two positive numbers that its ratio is 6:6 and difference was 0.
- Lunch for free
Gastro ticket are "free" and therefore they should be retained. This think many employees in Slovakia. Calculate how much money employee yearly earn if he get 201 gastro tickets of 2.8 € and you know that the company issuing gastro tickets get 4.9% fee of
- Pension or fraud
Imagine that your entire working life working honestly and pay taxes and to Social Insurance (in Slovakia). You have a gross wage 900 Euros, you pay social insurance (you and your employer) monthly € 288 during 41 years and your retirement is 405 Eur
The farmer farming 293 ha of arable land and the remaining 20% are meadows and pastures. How much land farmer owns?
- Chickens and rabbits
In the yard were chickens and rabbits. Together they had 18 heads and 56 legs. How many chickens and how many rabbits were in the yard?
- Percent calculation
Calculate 8% if 44% is 32.