# Themes, topics - math word problems - page 128 of 129

#### Number of problems found: 2576

- Movement

From the crossing of two perpendicular roads started two cyclists (each on a different road). One runs at an average speed of 28 km/h, and the second 24 km/h. Determine the distance between them after 45 minutes of cycling. - Forces

In point, O acts three orthogonal forces: F_{1}= 20 N, F_{2}= 7 N, and F_{3}= 19 N. Determine the resultant of F and the angles between F and forces F_{1}, F_{2}, and F_{3}. - Resistors

Two parallel resistors connected in series give the resulting resistance 240Ω and 57.6Ω. Determine the resistance of these resistors. - Free fall

Pavel fall from height 9 m. Calculate the speed he hit the ground when falling with acceleration g = 9.81 m/s² - Pool

If water flows into the pool by two inlets, fill the whole for 19 hours. The first inlet filled the pool 5 hour longer than the second. How long does the pool take to fill with two inlets separately? - Cyclist

The cyclist goes uphill 10 km for 50 minutes and downhill minutes for 29 minutes. Both applied to the pedals with the same force. How long does he pass 10 km by plane? - Floor

The room's floor area is 31 m² and has a width of 4.3 m. How many centimeters of circumference measured the floor on the map at the scale 1:75? - Daily average

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

Car is traveling 98 km per hour. How long distance does it travel in 1 minute? - Map

Forest has an area of 36 ha. How much area is occupied by forest on the map at scale 1:500? - Triangle P2

Can a triangle have two right angles? - Triangle

Prove whether you can construct a triangle ABC if a=9 cm, b=6 cm, c=10 cm. - Pumps

The tank is filled with two pumps in 16 minutes. The first pump is filled in 30 minutes earlier than two one. How many minutes is filled with the first pump? - Reciprocal

It is true (prove it) that if a > b > 0: (1)/(a)< (1)/(b) - 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? - Gold wire

From one gram of gold was pulled wire 1.4 km length. What is its diameter if the density of Au is ρ=19.5 g/cm³? - Proof I

When added to the product of two consecutive integers larger one, we get the square larger one. Is this true or not? - Compound interest

Calculate the time when the deposit in the bank with interest 2.6% p.a. doubles. - Carbon dioxide

Calculate how many grams of oxygen are in 50 g of carbon dioxide CO_{2}. The relative atomic mass of oxygen is 16 and of carbon is 12. - Wind drift

The plane flies at 900 km/h, passing distance 1800 kilometers with the wind and once again against the wind for 4 h 1 min. What is the wind speed?

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