Written Instructions:
For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..
For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.
Leave your answers in the simplest form or correct to two decimal places.
| 1) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 2) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 3) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 4) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 5) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 6) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 7) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 8) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 9) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 10) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work days Answer:_______________ |
| 1) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 2) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 3) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 4) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 5) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 6) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 7) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 8) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 9) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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| 10) Three men A,B,and Ccan complete a job in 8, 12 and 16 days respectively.A and B work together for days;then B leaves and C joins. B leaves and C joins. In how many days ,can Aand C finish the work Answer: 2days SOLUTION 1 : Soln: Workdone by A in 1 day = Workdone by B in 1 day = Workdone by C in 1 day = Workdone by A& B togethre in 1 day = + = + = =
Workdone by A & B together in days = x 3 = Remaining work = 1 - = B leaves C joins Number of days taken by A & C finish the work = ( )/( + ) =( )/ =2 days
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