Time - practice for 13 year olds - page 15 of 65
Number of problems found: 1288
- Today 2
Today only, a desk is being sold at a 72% discount. The sale price is $100.80. What was the price yesterday? - On Tuesday 2
On Tuesday, the temperature at 9 a.m. at Camden's house was -4°Fahrenheit. By 4 p.m., the temperature at his house was 8°Fahrenheit. Which statement about the change in temperature from 9 a.m. to 4 p.m. at Camden's house is true? Is house true? A. The tem - Branisko 70954
The Branisko tunnel has a length of 4975m. How long will a car pass through the tunnel if the speed limit is 80km/h? - Peter 70794
Peter is x years old. Juraj is 2/5 older than Peter. They are 72 years old in total. How old is Peter, and how old is Juraj?
- Tributaries 70734
The pool would fill with three identical tributaries in 52 hours. After 20 hours, two more inlets were added. How many hours did the pool fill up? - 13680m2 70374
Eight painters painted an area of 15200 m² in 5 days. How many painters will paint a room of 13680 m² in 3 days? - Improvements 70344
Two workers work equally efficiently and together can complete a given task in 5 hours. One worker improved his machine, changed his workflow, and increased his output by 40%. How long will it take both workers to complete the given task? - Directions 70274
Two runners train on a circular track that is 375 m long. When they start from the same place and run in opposite directions, they meet in 30 seconds. When they run in the same direction, they are 15 m apart in 30 seconds. What is the average speed of eac - A cyclist
A cyclist rides for 30 minutes on a style road to the top of a mountain. Down there, the road goes downhill. Its uphill speed is 20km/h and 60km/h downhill. The distance from the summit of the mountain to its destination is 30 km. Calculate the average sp
- The temperature 28
The temperature rose 14°C in 3 1/2 hours. At what rate, in degrees per hour, did the temperature rise? - Lightning 69734
The sound travels at a speed of 1km in 3 seconds. If the thunder is heard 12 seconds after the lightning, what distance is the storm? - Coincide 69334
In how many minutes after the second hour do the clock hands coincide? - Kilometers 69264
Laura went for a new bike ride. In an hour, her father followed her on the same route at a speed of 60 km/h and overtook her in 1/2 hour. a) Find the length of Laura's route in kilometers before her father caught up with her. b) Determine in kilometers pe - Grandmother's 69254
The grandmother and granddaughter Julia harvest currants in 15 hours of work together. Julia would harvest currants for ten days after 6 hours of work a day. a) Determine in hours how long the harvest would have taken for her grandmother if Julča had not
- Pump power
Determine the pump power if: I pour 3 m³ of water from the tank in 120 seconds with a hose. The height of the hose mouth above the tank is 1.5 m. The water's speed from the hose outlet is 20 m/s. - Hectares 68854
Tractor drivers plow "h" hectares of land per day. How many hectares of land would they have to plow per day to plow the 585 ha area three days earlier than planned? For which "h" does this problem have a positive solution? - Intersections 68784
The figure shows the circles k₁(S₁; r1=9 cm) and k₂(S2; r2 = 5 cm). Their intersections determine a common chord t 8 cm long. Calculate the center distance |S₁ S₂| in cm to two decimal places. - The noon-time
The noon-time temperature was 29°F. It was 4°F lower than predicted. Write and solve an equation to determine the predicted noon-time temperature. - Agreement 68094
Janka and Katka live in villages 16 km away. They agreed to meet precisely halfway. Jana was driving at a speed of 4 km/h. Katka came out 30 minutes later. At what speed must Katka drive to fulfill the agreement?
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