Grade - math word problems - page 382 of 947

Number of problems found: 18923

Number 42011
7/10 from number K is 28 What is the number K =?
The kennel
20 dogs. The ratio of dogs to cats is 3:2 . How many cats?
Radiators
Calculate the radiator output if it has a thermal gradient (difference between inlet water and return temperatures) a) 5°C b) 10°C c) 15°C d) 20°C A heating water volume flow is 45 kg/h. How fast the water flows from the supply pipe to the radiator e) DN1
Modulus and argument
Find the mod z and argument z if z=i
Apartment building
Two hundred eight people live in the apartment building. There are as many women as there are men, but there are 22 more children than women. How many adults live in an apartment building?
Family age
Kubo is 14 years old and has a one-year-old sister, Nina, and a four-year-old brother, Sam. In how many years will Nina and Sam be as old as Kubo?
Pilgrimage 41951
Pavel spent CZK 315 on the pilgrimage in three days, doubling his spending every following day. How much CZK did he pay on the first day?
Three-digit numbers
How many three-digit numbers are not closer to 600 on the number axis than 400?
Governments 41931
Father put €600 in a bank that pays government interest at a rate of 3%p. A. Grandfather put €610 in a bank that will make governments at a rate of 2%p. A. Which will have more money if they withdraw from the bank after one year?
ABC isosceles
ABC isosceles rights triangle the length of each leg is 1 unit what is the length of the hypotenuse AB in the exact form
Free fall
The elevator car weighing 720 kg, is torn off at the height of 125 m and begins to fall in a free fall. How much kinetic energy did the elevator car have when it hit the ground floor of the building when the free fall of the car lasted 5 s?
Efficiency 41901
What percentage is the loss of a machine that works with an efficiency of 0.78?
Performance 41891
The car's engine develops a power of 1800N. Find its performance if it travels evenly on a horizontal path at 48 km/h.
Calculate 41881
The volume of the sphere is 803.84m³. Calculate its surface.
Five-digit number
Anna thinks of a five-digit number not divisible by three or four. If he increments each digit by one, it gets a five-digit number divisible by three. If he reduces each digit by one, he gets a five-digit number divisible by four. If it swaps any two digi
Gravitational 41861
Find the potential gravitational energy of a 2000kg tow cage relative to the bottom of an 850m deep draw pit when the cage is on the surface.
G Force, mass
The car, with a weight of 20 kN, travels at a speed of 54 km/h. What is its kinetic energy?
Average 41841
What work do we do if we pull out a 58mm nail with an average force of 350N?
Happy marriage
Jan and Marienka have been in a happy marriage for several years. Jan's age is written in the same numbers as Marienka's, only in reverse order. Their ages differ by just a fifth of Marienka's. Jan is older. How old is Jan, and how many is Marienka?
Perpendicular leg
Calculate the area of a right triangle whose longer perpendicular is six dm shorter than the hypotenuse and three dm longer than the shorter perpendicular.

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