Equation + work - practice problems - page 18 of 21
Number of problems found: 407
- Machines 2
Two machines for 50 hours produce 2,000 products. How many machines need to buy to make in 30 hours 15,000 products? - Workers 2
The worker dug the trench for 7 hours, and another worker for 10 hours. They recruited to work even one worker. Digging should be done for 2 hours. For how long would dig the third worker alone? - Two looms
On two looms of different performances, the desired amount of fabric can be woven in 6 hours when both are working simultaneously. On the first machine, this amount of fabric would be woven in 10 hours. How long would it take to weave on the second machin - Two tributaries
Two tributaries of the pool fill it in 10 hours. One of the tributaries would fill 15 hours. How long would fill the first tributary?
- Simultaneously 2468
Hiker A travels a certain distance in 5 hours and 24 minutes. Hiker B travels the same distance in 6 hours and 45 minutes. After what walking time will they meet if they simultaneously start opposite each other on the same route? (To the route that everyo - Performances 2459
Three part-timers received a total of 2,800 Euros for their work. They divided them according to their performances so that the first got 2/5 less than the second and the third got 50 Euros more than the first. How many crowns did the third one get? - Pumps A and B
Pump A fills the tank for 12 minutes, and pump B for 24 minutes. How long will it take to fill the tank if he is only three minutes work A and then both pumps A and B? - Minutes 2446
The water tank is filled with the first inflow in 1 hour 20 minutes, the second in 60 minutes. How many minutes will the tank be half full with both inlets if the other inlet is opened 12 minutes later? - On the farm
On the farm were housed 70 heads of cattle with food supply for 180 days. After 60 days, ten heads of cattle were sold, and for the next 30 days, they sold ten more. How many days is a sufficient supply of feed for the remaining cattle?
- The dam
The water reservoir is filled with the first tributary for 25 hours second tributary for 35 hours. Some time was, both inlets open, then a second tributary closed, and they filled the tank in four hours. What time does water flow from both tributaries? (E - Grass garden
Mr. Grass would itself be mowed garden for 5 hours. His son Michael could do it for 7 hours. They agreed that they 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 wor - Work at plant
Handyman has vowed to do repair work at the plant for 25 days. However, work had to be shortened and therefore gained helper. Together they made all the corrections for 13 1/3 days. How long would the work take the helper himself? - Repairman
The repairman has vowed to do repair work at the plant for 25 days. However, work had to be shortened, so he took a helper worker. Together they made all the corrections for the whole day. How long would it take work to help workers? - Two masons
Two masons built the garage together - it took 18 days. If they worked independently, the other would work 15 days more than the first. For how many days would build the garage each mason himself?
- Bricklayers
Eight bricklayers build a house for 630 days. How many bricklayers have to add after 150 days to complete the whole building in (next) 320 days? - Painters 4
One painter will do the job for 12 days. After a 4 1/3 day, he comes second to help him complete work together for eight days. How long would work the second painter himself? - Workers
Ten workers must pave road street for 22 working days. After four days were for speeding up work, added two more workers. a) After how many work days now workers complete the paved road? b) How many working days does a total paved road take? - Apprentice
The worker and apprentice execute the work for 6 hours. The worker performs himself in 10 hours. How long do the work of an apprentice? - Tank 9
The tank with volume V is filled with one pump for three hours and by the second pump for 5 hours. When both pumps run simultaneously, calculate: a) how much of the total volume of the tank is filled in one hour b) for how long is the tank full
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