
question_answer1) If x persons working x hours a day for each of y days produce y units of works, then the unit of work produced by y persons working y hours a day for each of x days is
A) \[{{y}^{2}}/{{x}^{2}}\] done
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B) \[{{y}^{{}}}/{{x}^{2}}\] done
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C) \[{{y}^{2}}/{{x}^{3}}\] done
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D) \[{{y}^{2}}/x\] done
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question_answer2) Ravi and Sonu can do a job alone in 20 days and 30 days respectively. In how many days the job will be finished, if they work together?
A) 10 days done
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B) 12 days done
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C) 8 days done
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D) 13 days done
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question_answer3) In 4 men reap 40 acres in 30 days. How many acres will 18 men reap in 12 days?
A) 70 done
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B) 72 done
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C) 60 done
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D) 68 done
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question_answer4) A and B can do a work in 72 days. B and C in 120 days. A and C in 90 days. In how many days can A alone do the work?
A) 80 done
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B) 100 done
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C) 110 done
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D) 120 done
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question_answer5) Robert can finish the writing of the book in 8 days while James can finish the same work in 10 days. If they work together, then how long they will take to finish the same work?
A) \[10\frac{1}{2}\]days done
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B) \[6\frac{2}{3}days\] done
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C) \[\frac{4}{9}\] days done
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D) \[4\frac{4}{9}\]days done
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question_answer6) Two pipes A and B can fill a tank in 16 hours and 20 hours respectively. If both the pipes are opened simultaneously, how much time will be taken to fill the tank?
A) \[8\frac{8}{5}\]hours done
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B) \[8\frac{8}{9}\] hours done
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C) \[8\frac{17}{9}\]hours done
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D) \[8\frac{7}{9}\]hours done
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question_answer7) If 40 men can complete a work in 10 days working 10 hours a day, then find the number of men is required the work in 5 days if they work 10 hours in a day.
A) 100 men done
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B) 60 men done
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C) 150 men done
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D) 80 men done
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question_answer8) A is twice as good work man as B and together they finish a piece of work in 18 days. In how many days will A alone finish the work?
A) 27 days done
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B) 28 days done
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C) 30 days done
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D) 31 days done
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question_answer9) A can do a certain job in 12 days. B is 60% more efficient than A. How many days does B alone take to do the same job?
A) \[9\,\,{\scriptstyle{}^{1}/{}_{2}}\]days done
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B) \[8\,\,{\scriptstyle{}^{1}/{}_{2}}\] days done
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C) \[7\,\,{\scriptstyle{}^{1}/{}_{2}}\] days done
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D) \[11\,\,{\scriptstyle{}^{1}/{}_{2}}\] days done
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question_answer10) A and B undertake to do a piece of work for Rs. 600. A alone can do it in 6 days while B alone can do it in 8 days but with the help of C, they finish it in 3 days. Find the share of C.
A) Rs. 75 done
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B) Rs. 90 done
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C) Rs. 110 done
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D) Rs. 85 done
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question_answer11) A and B working separately can do a piece of work in 9 and 12 days respectively. If they work on alternate days beginning with A, then in how many days, the work will be completed?
A) \[11{\scriptstyle{}^{1}/{}_{4}}\]days done
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B) \[5{\scriptstyle{}^{1}/{}_{4}}\] days done
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C) \[\text{9}{\scriptstyle{}^{1}/{}_{4}}\] days done
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D) \[\text{10}{\scriptstyle{}^{1}/{}_{4}}\] days done
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question_answer12) A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together they will complete the same work in
A) \[\frac{1}{24}\]days done
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B) \[\frac{7}{24}\]days done
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C) \[3\frac{3}{7}\]days done
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D) 4 days done
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question_answer13) 2 men and 3 boys can do a piece of work in 10 days. While 3 men and 2 boys can do the same work in 8 days. In how many days can 2 men and 1 boy do the work?
A) \[12{\scriptstyle{}^{1}/{}_{2}}\]days done
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B) \[13{\scriptstyle{}^{1}/{}_{2}}\] days done
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C) \[14{\scriptstyle{}^{1}/{}_{2}}\] days done
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D) \[17{\scriptstyle{}^{1}/{}_{2}}\] days done
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question_answer14) 45 men can complete a work in 16 days. Six days after they started working, 30 more men joined them. How many days will they now take to complete the remaining work?
A) 5 days done
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B) 6 days done
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C) 7 days done
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D) 8 days done
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question_answer15) X can do \[1/4\] of a work in 10 days. Y Can do 40% of the work in 40 days and Z can do 1/3 of the work in 13 days. Who will complete the work first?
A) X done
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B) Y done
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C) Z done
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D) X and Z both done
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question_answer16) A and B can do a work in 12 days. B and C in 15 days. C and A in 20 days. If A, B and C work together, they will complete the work in
A) 5 days done
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B) \[7\frac{5}{6}\]days done
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C) 10 days done
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D) \[15\frac{2}{3}\]days done
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question_answer17) A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days , then B alone could do it in
A) 15 days done
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B) 20 days done
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C) 25 days done
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D) 30 days done
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question_answer18) A is thrice as good a work man as B and therefore is able to finish a job in 60 days less than B, working together they can do it in:
A) 20 days done
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B) \[22\frac{1}{2}\] days done
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C) 25 days done
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D) 30 days done
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question_answer19) A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of work that is left is:
A) \[1/4\] done
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B) 1 /10 done
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C) 7/15 done
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D) 8/15 done
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question_answer20) A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in
A) 5 days done
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B) 6 days done
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C) 10 days done
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D) \[10\frac{1}{2}\] days done
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question_answer21) Two pipes A and B can fill a tank in 24 hours and 30 hours respectively. The tank is emptied. How much time will be taken by them to fill it?
A) 13 hours 20 min. done
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B) 16 hours 30 min. done
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C) 14 hours 10 min. done
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D) 15 hours 40 min. done
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question_answer22) A pipe can fill a tank in 15 hours. Due to leak in the bottom, it is filled in 20 hours. If the tank is full, how much time will the leak take to empty ti ?
A) 120 hours done
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B) 80 hours done
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C) 40 hours done
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D) 60 hours done
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question_answer23) Pipes A and B can fill a tank in 6 hours and 9 hours respectively while another outlet pipe can empty it in 12 hours. If all the pipes are opened together in the empty tank, in how much time will it be full.
A) \[5\frac{1}{7}\]hours done
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B) \[6\frac{1}{7}\] hours done
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C) \[8\frac{1}{7}\]hours done
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D) \[10\frac{1}{7}\]hours done
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question_answer24) Two pipes A and B can fill a tank in 24 min. and 32 minutes respectively. If both the pipes are opened together, after how much time B should be closed so that the tank is full in 18 minutes.
A) 7 minutes done
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B) 6 minutes done
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C) 8 minutes done
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D) 9 minutes done
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question_answer25) Two pipes A and B can fill a tank in 2 hours and 75 minutes respectively. There is also an outlet C. If all the three pipes are opened together then the tank is full in 50 minutes. How much time will be taken by C alone to empty the full tank?
A) 90 minutes done
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B) 10 hours done
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C) 150 minutes done
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D) 120 minutes done
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question_answer26) Two pipes can fill a cistern in 14 hours and 16 hours respectively. The pipes are opened simultaneously and it is found that due to leakage in the bottom it took 32 min. more to fill the cistern. When the cistern is full, in what time will the leak empty it?
A) 100 hours done
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B) 111 hours done
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C) 112 hours done
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D) 114 hours done
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question_answer27) Twenty women can do work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?
A) 3 : 4 done
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B) 4 : 3 done
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C) 5 : 3 done
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D) data inadequate done
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question_answer28) A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every 3rd day?
A) 12 days done
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B) 15 days done
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C) 16 days done
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D) 18 days done
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question_answer29) A alone can complete a work in 16 days and B alone in 12 days. Starting with A, they work on alternate days. The total work will be complete in
A) 12 days done
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B) 13 days done
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C) \[13\frac{5}{7}\]days done
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D) \[13\frac{3}{4}\]days done
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question_answer30) A can do a piece of work in 7 days by working 9 hours on each day and b can do it in 6 days by working 7 hours on each day. How long will they take to do it, working together for \[8\frac{2}{5}\] hours a day?
A) 4 days done
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B) 3 days done
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C) 2 days done
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D) 5 days done
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