DELHI POLICE CONSTABLE DRIVER QUANT(TIME AND WORK)QUIZ

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Question 1:

Virat can do a piece of work in 20 days, while Anu can do that work in 15 days. If they work together, then how much time will be taken by Virat and Anu to complete the work?

Question 2:

Sunny and Paula can complete a piece of work together in 12 hours. Paula takes 18 hours to complete work alone, another individual, Jane, takes 45 hours to complete the same piece of work alone. How many hours would it take sunny and Jane to complete the same work together?

Question 3:

Sarthak can fill a sand pit in 14 days while Vivaan takes 35 days to fill it. Ali can completely empty a filled sand pit in 12 days. If all three work together in the empty pit, then in how many days will the sand pit be filled again?

Question 4:

Raksha can complete a piece of work in 12 days while ishwar takes 20 days to complete the work. They start the work together but 4 days before it gets over the Raksha work which leaves how many days ishwar works?

Question 5:

12 women can complete a work in 64 day, then find how many women will be required to complete 2/3 rd of the same work in 16 days?

Question 6:

A alone can complete a work in 25 days and $B$ alone can complete the same work in 15 days. If $C$ is $60 \%$ less efficient than B, then find time taken by A and C together to complete the same work?

Question 7:

A completes a work in 24 days , A+B completes the same work in 18 days while B+C completes the same work in 24 days. Find how many days C alone completes the whole work?

Question 8:

P and Q can complete a work in 9 and 12 days respectively. Working alternatively, in how many days the same work will be completed if Q starts the work.

Question 9:

20 women can do a piece of work in 15 days while 16 men can do the same work in 15 days then find the ratio of efficiency of men to women.

Question 10:

20 persons were engaged to complete a work in 8 days. Due to COVID 19 infection, 4 persons left the job after 4 days. The total number of days required to complete the work is: