Statistics - math word problems - page 36 of 46
Number of problems found: 920
- Painters
The first team of painters would paint the bridge in 15 days, the second in 10 days. After three days of working together, the second team goes out and continues only with the first team. How many days took the second team to finish painting the bridge? - Grass garden
Mr. Grass would mow the garden for 5 hours, and his son Michael could do it for 7 hours. They agreed to wake up at 5 AM and begin to mow together. Ms. Grass needs to drive into town at 8:30. Michael says that at that time, they're done with work. Is he ri - Digger ditch together
An older digger would dig a ditch by himself in 6 hours. A younger digger can handle the same trench in 3 hours. How long would it take them to dig if they worked together? - Painter fence work
Two painters are painting the factory fence together. If everyone worked alone, the first would finish the job in 16 days, the second in 20 days. When will they finish the work together? - Water mixing
We mix 2 liters of water at 100 degrees Celsius warm and 18 liters of water at 32 degrees Celsius warm. What temperature will the water have after mixing? - Evening shift
While working the evening shift, Officer K took 8 hours to complete a task at his workstation, and Officer M took 10 hours to complete the same task at his workstation. How long would it take Officer K and M to complete the same task, each working at his - Five identical
Five identical coins are tossed. What is the probability of more than one head? - Blueberries - total
Peter can fill a container with blueberries in 3 hours, and Jane in 2 hours. How long will it take them to fill the container together? - Teacher paper correction The new teacher corrects papers for 9 hours, and the older one fixes them in 6 hours. How much will they repair together?
- Jana Petra windows
Jane can wash 20 windows alone in 4 hours. Petra can do the same job in 6 hours. How long will it take them working together? - Tank inflow time
We would fill the water tank with one inflow in 3 hours and the other inflow in 2 hours. How long will it take for both tributaries to open? - Flowerbed
Andrew digs the garden bed in 20 minutes and Jake does it in 30 minutes. How long does it take them working together? - Two pumps filling
A pool with one pump fills in 14 hours and the other in 15 hours. How long will the pool fill when both pumps are used? - Work time
Josef would do the work himself in 5 hours. Josef and Michael would do the work together in 3.5 hours. Determine how long it would take Michael to do the job independently. - Work time
Michael would cut the fence himself in 12 hours. It would take Michael and George 8 hours together. Determine how long it would take for George to do the job. - Two workers
Two workers work together and perform the job in 12 hours. If one has done half the work and then the second worker does the next half of the work, it will take 25 hours. How long would it take to job them separately? - Tanker
The first pump can empty an oil tanker in 6.1 hour, and the second pump can empty a tanker in 10.3 hours. If the first pump starts at 5:00 and the second starts 1.4 hour later, when will the tanker be empty? - Pedestrian speed comparison
One pedestrian walked the 16 km track in 3.12 hours Two pedestrians walked the 18 km track in 3.18 hours Which one had a higher average speed on its track? - Distribution function
X 2 3 4 P 0.35 0.35 0.3 The data in this table do I calculate the distribution function F(x) and then probability p(2.5 < ξ < 3.25) p(2.8 < ξ) and p(3.25 > ξ) - Bread weight rejection
The weight of a loaf of bread should be 900 g. Loaves whose weight differs by more than 30 g from this value must be rejected. Determine the probability that a loaf is rejected if its weight has a normal distribution N(900,40).
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