# Time - math word problems - page 146 of 148

Time (latin tempus) is one of the fundamental physical quantities of SI. The base unit is 1 second. One second is defined as 9,192,631,770 transition oscillations in the Cs-133 atom (the atomic clock ticking). Time cannot be defined using other physical quantities - it is an essential - fundamental quantity. Derived units are minute, hour, day, week, year. For example, 1 minute is defined as 60 seconds. One hour is 3600 seconds. One day is 24 hours. Fractional seconds are 1 ms (millisecond), 1 μs (microsecond), and 1 ns (nanosecond). Frequency is the inverse of the duration of a phenomenon that repeats itself.#### Number of problems found: 2951

- Pool

If water flows into the pool by two inlets, fill the whole for 20 hours. The first inlet filled the pool 8 hour longer than the second. How long does the pool take to fill with two inlets separately? - Triangle

Calculate the area of the right triangle ΔABC if one leg is long 12 and its opposite angle is 47°. - Center

Calculate the coordinates of the center of gravity T [x, y] of triangle ABC; A[-17,9] B[-26,-19] C[-7,7]. - Cyclist

The cyclist goes uphill 2 km for 7.4 minutes and downhill minutes for 4.8 minutes. Both applied to the pedals with the same force. How long does he pass 2 km by plane?

- Daily average

Calculate the average temperature during the day, when 14 hours were 24 °C and 10 hours was 14 °C. - Car - simple

Car is traveling 77 km per hour. How long distance does it travel in 1 minute? - Clock

How many hours are 10 days? - Height 2

Calculate the height of the equilateral triangle with side 49. - Aircraft

Flight length 3457 km took 5 hours. The airport passengers had to arrive hours in advance, 2 hours. Departure was delayed for 6.4 hours. The destination airport formalities took 0.4 hours. Calculate the average speed of passenger travel from arrival to le

- Pipes

The water pipe has a cross-section 1184 cm². An hour has passed 743 m³ of water. How much water flows through the pipe with cross-section 300 cm² per 6 hours if water flows at the same speed? - Education for free

Slovakia circulates a lot of myths, particularly ideas about what must be free. For example - education should be free - children of poor parents should know at least to read and write. Calculate how much a student would have to pay per hour of teaching w - Minute angle

Find the size of the angle, which takes a minute hand for 20 minutes. - Tourist

Tourists walk at 4.1 km/h. Every 5 km has a 20-minute break. How many kilometers were walked when they started at 4:40 and finished at 10:30? - Train

The train passes part of the line for 95 minutes at a speed of 75 km/h. What speed would you have to go to shorten the driving time of 20 minutes?

- Equilateral triangle

Calculate the side of an equilateral triangle if its area is 886 mm². - Triangle

Calculate the triangle's heights ABC if the triangle's sides are a=26, b=81, and c=73. - Pump

What power does a pump output to move 1060 hl of water to a height of 43 m for 8 hours? - Fan

The fan has a speed of 179 RPM. Calculate for the time of one fan period. - A trip to the peak Dry

Calculate what percentage is rising trip from Strečno to peak Suchý (Dry peak) longer than the descent back. Team trio of tourists (Palo, Peter, and Andrew) rise took 4:21 and descent 3:08.

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