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GRE Numerical Ability - Time and Work Sample Question with Solutions

(#M40166023) GRE QUESTION Keep an EYE

Tate can develop specific software in 15 days, while Kate takes 30 days to complete it. However Tate do not have more than 3 days to devote, therefore he works along with Kate for only first 3 days of the project and leaves Kate to finish the project on his own. Find how many days will Kate need to finish the project now ? (A)20 (B)24 (C)22 (D)21

Asked In GRE Devendra Marghade (4 years ago)

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(#M40165908) GRE QUESTION Keep an EYE

Machines A and B always operate independently and at their respective constant rates. When working alone, Machine A can fill a production lot in 3 hours, and Machine B can fill the same lot in x hours. If A and B worked alternatively, while each work for 1 hour at a time, the total work gets completed in 4 hours. What is the value of x? A)8 B)9 C)6 D)5 E)7

Asked In GRE Devendra Marghade (4 years ago)

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(#M40165851) GRE QUESTION Keep an EYE

Eighteen men can complete a work in 10 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete remaining work? [A] 3 [B] 2 [C] 4 [D] 5

Asked In GRE Devendra Marghade (4 years ago)

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(#M40165811) GRE QUESTION Keep an EYE

Three workers, A, B, and C, can complete a certain task in 10, 5 and x hours respectively. A starts working alone and 2 hours later B joins. After another 2 hours joins C. After that A, B, and C together complete the task in 15 minutes. What is the value of x?

Asked In GRE Devendra Marghade (4 years ago)

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(#M40165774) GRE QUESTION Keep an EYE

Working alone at their respective constant rates, A can complete a task in ‘a’ days and B in ‘b’ days. They take turns in doing the task with each working 2 days at a time. If A starts they finish the task in exactly 10 days. If B starts, they take half a day more. How long does it take to complete the task if they both work together?
A. 46/9 B. 50/9 C. 50/11 D. 36/7 E. 210/41

Asked In GRE Devendra Marghade (4 years ago)

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(#M40165721) GRE QUESTION Keep an EYE

A and B can do a piece of work in 24 days, B and C can do it in 30 days and C and A can do it in 40 days. Which of the following statements is true? Indicate all correct options.
A. A takes 40 days to do the work
B. B takes 40 days to do the work
C. C takes 120 days to do the work
D. B takes 120 days to do the work
E. C takes 60 days to do the work

Asked In GRE Devendra Marghade (4 years ago)

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(#M40165708) GRE QUESTION Keep an EYE

It takes 6 technicians a total of 10 hours to build and program a new server from Direct Computer, with each working at the same rate. If six technicians start to build the server at 11:00 AM, and one technician per hour is added beginning at 5:00 PM, at what time will the server be complete?

A. 7:30 PM
B. 7:45 PM
C. 8:00 PM
D. 9:00 AM
E. 10:00 PM

Asked In GRE Devendra Marghade (4 years ago)

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(#M40165707) GRE QUESTION Keep an EYE

Jane can paint the wall in J hours, and Bill can paint the same wall in B hours. They begin at noon together. If J and B are both even numbers is J=B?

(1) Jane and Bill finish at 4:48 p.m.
(2) (J+B)^2=400

Asked In GRE Devendra Marghade (4 years ago)

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(#M40157048) GRE QUESTION time and work Keep an EYE

if 2 persons can complete awork in 8 days and 1 persons can complete his work in 24 days .how much days will second person take to compete thair wok alone

Asked In GRE divya (6 years ago)

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(#M40151705) GRE QUESTION Time and work Keep an EYE

Question
Working alone at its constant rate, machine A produces k car parts in 10 minutes. Working alone at its constant rate, machine B produces k car parts in 15 minutes. How many minutes does it take machines A and B, working simultaneously at their respective constant rates, to produce k car parts?

Asked In GRE Aashu (7 years ago)

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