Efficiency
A certain device consumes 28 kW and delivers 14 kW. Find its efficiency.
Correct result:
Correct result:

Showing 0 comments:
Tips to related online calculators
Our percentage calculator will help you quickly calculate various typical tasks with percentages.
Check out our ratio calculator.
Check out our ratio calculator.
You need to know the following knowledge to solve this word math problem:
Next similar math problems:
- Efficiency
What is the power output of kettle 2 kW with efficiency 90%?
- Motor physics
Car traveling at 130 km/h on the highway. Pulling power of the motor is 8 kN. Determine engine power in kW.
- Kilowatt-hours
If the Lewis family used 648 kilowatt-hours of electricity in 12 days, how many kilowatts hours should they use in 24 days at the same rate of usage
- Bonus
The gross wage was 1323 USD including 25% bonus. How many USD were bonuses?
- Time
Write time in minutes rounded to one decimal place: 5 h 28 m 26 s.
- Six percents
6% of the base is 21. How much is 28% of this base?
- VAT
John paid 1000 Euros in store for purchase. Calculate value added tax (VAT), which paid in purchase, if the VAT rate is 20%.
- Discount
Product has been discounted twice by 19%. What is the total discount given?
- Tare
Gross weight of shipment is 6927 kg and its tare is 7%. Calculate the net weight of the shipment.
- Find the 11
Find the quotient of 229.12 and 12.32
- Ratio
Increase in the ratio 20:4 number 18.5.
- Motorcycle engine
The motorcycle engine has a constant power of 1.2 kW for 0.5 hours. How much work does the engine do? Express work in kWh and Ws units.
- Two numbers
Find two numbers whose difference and ratio is 2.
- Numbers
Determine the number of all positive integers less than 4183444 if each is divisible by 29, 7, 17. What is its sum?
- Farmer
The farmer farming 293 ha of arable land and the remaining 20% are meadows and pastures. How much land farmer owns?
- Donuts
Find how many donuts each student will receive if you share 126 donuts in a ratio of 1:5:8
- Photo egative
Negative dimensions are 36mm and 28mm. What will be the photo size in the 21:4 ratio?