## Practice Time And Work Problems With Short Tricks

Q1. Worker A takes 8 hours to do a job,worker B takes 10 hours to do the same job.Find the total time taken by A and B both working together?

## Solution:A’s 1 day work=(1/8) ## Short trickTake L.C.M of 8,10 = 40 |

Q2.A and B can do a piece of work in 4 days working together.A alone do the same work in 12 days.Find the time taken by B to complete the same work? Ans-6 days

## Solution:A+B’s 1 day work=(1/4) ## Short trickTake L.C.M of 4,12 = 12 |

Q3.A and B paints a house in 18 days,B and C paint the same house in 24 days,A and C paints it in 36 days.Find the time taken by A,B,C when they alone paints the house.Also find the time taken when they start painting house together? Ans-(A-48 days,B-144/5 days,C-144,(A+B+C)-16 days

## Solution:A+B’s 1 day work=(1/18)——(1) |

Q4.A is twice as good workman as B and together they finish the work in 18 days.Find the time taken by A to complete the work? Ans-27 days

## Solution:A is twice as good workman as B.It means A takes less time than B.Ratio of time taken i.e A:B=1:2 ## Short trickTake L.C.M of 4,12 = 12 |

Q4.Ramesh builds a motor bike in 80 days.He starts building the motor bike and leaves it after 10 days.Rohan works on the same bike and completes building it in 42 days.Find the time in which Rohan alone can build that motor bike? Ans-30 days

## Solution:A+B’s 1 day work=(1/4) ## Short trickTake L.C.M of 4,12 = 12 |

## Practice Rest of Time And Work Problems with yourself

#### In case you face any problem kindly comment below

Q5.A and B undertake to do a piece of work for Rs 600.A alone can do it in 6 days and B can do it in 8 days.With the help of C they do the work in 3 days.Find their Share? Ans-(A-300,B-225,C-75)

Q6.A is 30%more efficient than B.What will be the time taken to complete that job which A alone can do it in 23 days? Ans -13 days

Q7.10 women can complete the work in 7 days whereas 10 children can complete the work in 14 days.Find the time taken by 5 women and 10 children to do the job? Ans-7 days

Q8.A alone can do a work in 16 days and B can do it in 12 days.Starting with A ,they work on alternate days.Find the total time taken to complete the work? Ans-55/4 days

Q9.If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same work in 2 days. In how many days 15 men and 20 boys can do the same work? Ans-4 days

Q10.A can do a piece of work in 40 days.A works for 8 days and B do it in 16 days.How long will they take to finish the work working together? Ans-40/3 days

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The question paper of plus two cbse psyhics was that of IAS standard. It was so tough that even the teachers who teaches this subject could not answer more than 50 percentage of the questions. This is cruel and the students who wrote this exam lost confidence so that they could not perform well in the rest of exams. It was shocking and the students are spending sleepless nights now waiting for the result.