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Three people A,B and C can do a piece of work in 45 hours,40hours and 30hours respectively.How long can B take to complete the remaining work alone,if he starts after A and C have worked for 13hours each?
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asked
Mar 28, 2022
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Mathematics Form 3
by
Nbacalvo
compound proportions and rates of work
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Two pipes A and B can fill an empty tank in 3hrs and 5hrs respectively. Pipe C can empty the tank in 4hrs. If the three pipes A, B and C are opened at the same time find how long it will take for the tank to be full.
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Aug 13, 2021
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compound proportions and rates of work
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mogaka and Onduso working together can do a piece of work in six days.mogaka , working alone takes five days longer than Onduso. How many days does it take Onduso to work alone?
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Dec 28, 2021
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compound proportions and rates of work
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A tank can be filled by a pipe A in five hours, pipe B takes seven hours to fill the same tank.pipe C takes ten hours to empty the tank.If all the pipes are left running simultaneously find how long they will take to fill the tank.Question b of the same starting with an empty tank, pipe A and C are left running for 6 hours while pipe B is closed.How long does it take pipe B to fill the remaining part of the tnk
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Jul 25, 2021
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JamesMurithi
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Three machines A, B and C are set to work together. A working alone takes 6 hours to complete the work; B takes 8 hours while C takes 12 hours. All the three machines started working at the same time. 40 minutes later machine A broke down. B and C continued for another 1 hour before B ran out of fuel and therefore stopped working for 20 minutes while C continued. If B resumed working after 20 minutes, calculate the:
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Jun 30, 2021
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ratios
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Peter, John and Ronny working together take 30 minutes to slash a piece of land. peter and Ronny together take 40 minutes while peter and John together take 45 minutes. How long would each one of them take to slash the same piece of land
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Jun 30, 2021
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