Q2. Anurag is 40% more efficient than Ayush. Ayush, Anurag and Shivam working together can do a work in 30 days and Shivam is 20% less efficient than Ayush. Find in how many days Ayush & Shivam working together can do same work?
(a) 51 ⅓days
(b) 49 ⅓days
(c) 47 ⅓days
(d) 45 ⅓days
(e) 53 ⅓days
Q3. Neha who is 50% more efficient than Ritu who take double time than Priya to complete a work. Neha can complete a work in ‘x’ days while Priya can complete the same work in (x – 15) days. In how many days all three can completes the same work together?
(a) 36 days
(b) 30 days
(c) 22.5 days
(d) 20 days
(e) 18 days
Q4.A, B and C can do a piece of work in 20 days, 10 days and 15 days respectively. They all started the work together but after 2 days B left the work and A left the work 1.5 days before the completion of work. Find the time in which work gets completed.
(a) 7.5 days
(b) 6⅔ days
(c) 8 days
(d) 6.5 days
(e) 9 days
Q5. Working efficiency of ‘A’ is twice than that of ‘B’. ‘A’ and ‘B’ together can complete the work in 60 days while ‘A’, ‘B’ and ‘C’ together can complete the same work in 45 days. Find in how many days ‘B’ and ‘C’ together can complete the work.
(a) 90 days
(b) 45 days
(c) 30 days
(d) 40 days
(e) 75 days
Q6. 7 men and 6 women together can complete a piece of work in 8 days and work done by a woman in one day is half the work done by a man in one day. If 8 men and 4 women started working and after 3 days 4 men left the work and 4 new women joined then, in how many more days will the work be completed
(a) 7 days
(b) 6 days
(c) 5.25 days
(d) 6.25 days
(e) 8.14 days
Q8. A Pipe can fill a tank in 2T hours. After one-fourth tank is filled, four more similar pipes are opened in the tank, find total time required to fill the tank completely?
(a) 0.8T
(b) 0.5T
(c) 0.6T
(d) 0.7T
(e) 0.9T
Q9. 8 men together can complete a work in 12 days. These 8 men started working together on the same work and have worked for 8 days, then X men more joined them which reduced the remaining work completion time by 33 ⅓%. Find the value of X?
(a) 3 men
(b) 4 men
(c) 5 men
(d) 6 men
(e) 2 men
Q11. A and B together can complete 4/7 th of a work in 16 days. If efficiency of B is 75% of that of A, then in how many days A alone will complete the whole work.
(a) 42 days
(b) 36 days
(c) 52 days
(d) 49 days
(e) 55 days
Q12. A and B together can complete a work in 12 days and A alone can complete the same work in 30 days. If they start the same work by working on alternate days starting with A, then find the required time to Complete the work?
(a) 20 days
(b) 30 days
(c) 24 days
(d) 25 days
(e) 22 days
Q13. Veer can do 25% of a work in 7 days, while Anurag can do 2/7 th of the same work in 12 days. Veer and Anurag start work together and after 12 days both replace by Ayush who complete the remaining work in three days. Find in how many days Ayush can complete the same work completely?
(a) 6.5 days
(b) 7.5 days
(c) 8.5 days
(d) 10.5 days
(e) 12.5 days
Q14. A water tank normally takes 9 hours to be filled by a tap but because of the leak, it takes another 3 hours. In how many hours will the leak empty a full water tank?
(a) 36 hours
(b) 72 hours
(c) 30 hours
(d) 32 hours
(e) 28 hours
Q15. Time taken by Rahul and Riya together to complete a work is 2 days less than the time taken by Riya alone to complete the same work. If ratio of efficiency of Rahul and Riya is 1:2 respectively, then find in how many days Riya alone can complete the same work?
(a) 8 days
(b) 7 days
(c) 6 days
(d) 5 days
(e) 4 days
Solutions
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