Physical quantity - math word problems - page 175 of 343
Number of problems found: 6852
- Clock face
A clock face is drawn on paper. Straight lines connect numbers 10 and 5, and 3 and 8. Calculate the size of their angles.
- Dwarves 37191
The dwarfs dragged Snow White in a coffin from the garden to the house as Snow White with the coffin was heavy. The dwarves pulled her with a speed of 0.2 m/s. The place where Snow White and the coffin were laid was 15000 cm away from the place in the hou
- Lead melt
Find the heat needed to melt an object made of lead weighing 250g and an initial temperature of 35°C. Lead melts at 327°C at normal pressure. Mass heat capacity of lead c = 129 J/kg • K and mass latent heat of lead lt (t is the subscript) = 22.6 kJ/kg.
- Scholarship 82450
University students increased their stipend by 20% and then again by 10%. Now he gets 99 euros. What was his original scholarship?
- Brigadiers 64164
Temporary workers Ivan, Lea, and Dana earned a total of 480 euros. Ivan made a third of that money. Lea and Dana earned the remaining money in a 3:1 ratio. How many euros did Leo earn?
- Three-quarters 44381
During the reconstruction of the apartment, the bricklayer built three-fifths of the wall in three-quarters of an hour. How much time does it take to build two walls?
- Settle 4310
Karel owes Marek 70 euros, Marek owes Fér 100 euros, and Fero owes Karl 30 euros. When they settle their debts, how many euros will they have, more or less?
- Straight-line 42511
The lady and the gentleman run toward each other in an even, straight-line motion. The lady runs at a speed of 25.2 km/h, and the man at a speed of 18 km/h. When they are 300m apart, we start timing. How long before the lady and the man fall into each oth
- Electrostatic
A proton with mass mp = 1.67.10-27 kg and electric charge e = 1.6.10-19 C, whose initial velocity was zero, is acted upon by a homogeneous electrostatic field of unknown intensity E. The proton moves in the direction of the lines of force and on a path s
- Mr. Erel
Mr. Erel earns 12% compounded quarterly. He projected to collect Ᵽ500,000 after ten years. What is the amount he needs to invest?
- Macky
Macky's income varies directly from the number of days that she works. If she earns 8000 pesos in 20 days, how much will she earn if she works three times long?
- Josh works
Josh works mowing lawns and babysitting. He earns $7.20 an hour for mowing and $6.80 an hour for babysitting. How much will he earn for 1 hour of mowing and 6 hours of babysitting?
- Coke and coal
20.1 tons of coke is produced from 30 tons of black coal. How much coke is made from 1 kilogram of coal?
- Father and daughter
The father is 36 years old; the daughter is 20 years younger. What will be the ratio between them if they are ten years older?
- Christmas
Father said, " Exactly after 56 hours, we will sit down at the Christmas Eve table." How was it, and what time was it, when Father said this sentence? They sat at the Christmas Eve table at exactly 6 PM.
- Television
When we add the difference between the numbers 1704 and 654 and the difference between numbers 14920 and 14042, we get the year in which television was invented. How many years have people known TV?
- Grower
Grower harvested 160 kg of apples. Pears harvested ten times less. a) How many kilograms of pears were harvested? b) How many apples and pears were harvested? c) How many kg harvested pears less than apples?
- Athletic oval
On the 400 m athletic oval, two athletes started back to back from the same level. After the starting shot, they both ran away from each other simultaneously. Athlete A ran at 15 km/h, and Athlete B ran at 17 km/h. A) in how many seconds did the athletes
- Electricity consumption
Calculate how much we will pay for 1 hour of consumed electrical energy if the seller sets a price of 0.126 euros for 1 kWh (all appliances together for 1 hour of work). Table: Appliance ; Power (W) Washing machine ; 2300 W Bulb ; 40W Refrigerator; 200W T
- Procedure 9191
Behind the tractor, which travels at 12 km/h, they sent a car 3.5 hours later to catch up with him in 45 minutes. What speed does he have to go? Please also explain the procedure.
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