Themes, topics - math word problems - page 86 of 167
Number of problems found: 3333
- Timetable 20313
The train ran the distance between stations at a 90km/h speed in 4 hours. What speed can it take if the journey takes an hour longer according to the new timetable? - Building 20293
Two workers will build the building in 10 hours. How many hours would they have built the building if three more workers had helped them? - Approximately 20243
Lake Trasimeno is approximately in the shape of a circle, its area is about 28 square kilometers, and Mr. Hector's walking speed is approximately 4km/h. Calculate the length of the path around the lake and how many hours Mr. Hector would have to walk to o - Performance 20233
How much percent performance improvement is needed if the work we have planned for five days has to be managed in three days? - Adjustment 20163
Two students adjust the flower bed in 3 hours. How long will this adjustment take for the pupils if they invite four helpers? - Density 20093
What is the weight of a wooden board 1.8 m long, 70 cm wide, and 5 cm high? The density of wood is p = 450 kg/cubic meter. - Transformer 20073
The transformer is oil-cooled and transforms a power of 20MW with an efficiency of 92%. Determine the temperature of the oil at the outlet of the transformer if the oil was 20°C when it entered the transformer. 2.5 liters of oil will flow through the tran
- Horses 20063
Nine horses need a lot of hay for two days. How many horses would the same amount of hay be enough for three days? - Supermarket 20053
When only three checkouts are open in a supermarket, people wait in line for an average of 10 minutes. How many minutes will the average waiting time in line be if two more checkouts open? - Outside tangents
Calculate the length of the line segment S1S2 if the circles k1 (S1, 8cm) and k2 (S2,4cm) touch the outside. - Compressive 19933
The submarine is at a depth of 50 m below the concave surface of the sea. Find the hydrostatic compressive strength of seawater on a metal cover with an area of 0.6 m². - The freezer
1. The temperature inside a freezer is minus 23 degrees Celsius. The temperature falls by a further 12 degrees Celsius. What is the new temperature? 2. What is the difference between temperatures of 12 degrees Celsius and 210 degrees Celsius? - Relationship 19813
When converting degrees Celsius (C) to degrees Fahrenheit (F), the relationship is used: F = C . 9/5 + 32. How many degrees Celsius are they in New York City if the thermometer reads 23 degrees Fahrenheit? - Complete 19783
Two roofers were to cover the roof in 14 days. After five days, they added one roofer. How long will it take them to complete the work? How many days will it take them to cover? - Tractors 19713
Two tractors are working on plowing the field. If only the first tractor plowed, it would plow the field in 3 hours. The second tractor would plow the field by itself in 6 hours. How long will it take to plow if they work together, but the other starts wo
- 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? - Electrical 19373
At a certain point, we measured a voltage of 3.74V at a current of 170mA at the terminals of a resistor connected to an electrical circuit. Calculate the resistance of the resistor. - Neighboring 19293
Farmers had three harvesters at their disposal during the harvest, with which they would harvest the fields in 9 hours. How long will it take them if two more harvesters from the neighboring district come to help them? - Solution 19283
How many grams of 80% solution and 55% solution do we need to mix to obtain 100 grams of 60% solution? - Surroundings 19153
A heating element with a resistance of 1.6 Ω is used to heat the car's rear glass. The body is connected to the battery in the car, which has a voltage of 12 V. a) What is the power input of the heating element? b) How much heat does the heating element g
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