Q22. Q can finish a work in 20 days while P in 15 days. If the work together 4 days, then find the fraction work that is left?
Q23. Nikki is 25% more efficient than Tina. Tina alone can build a craft in 20 days. Find the number of days taken by Nikki to finish the same piece of work?
|A. 15||B. 17|
|C. 18||D. 16|
Q24. Worker P is 50% as efficient as worker Q. Worker R does half of the work done by P and Q together. If R alone does the work in 40 days, then P, Q, and R together can do the work in?
|A. 20 days||B. 25 days|
|C. 13 days||D. 15 days|
Q25. A machine A can produce one thousand cars in 8 hours, machine B can produce the same numbers of cars in 10 hours, and machine C can produce them in 12 hours. All the machines started at 9 AM, but machine A is closed at 11 AM, and the remaining machines complete the work. Find the time at which the work will be completed?
|A. 1:00 PM||B. 12:45 PM|
|C. 12:25 PM||D. 11:30 AM|