Question
Machine X is 100% more efficient than Machine Y, and Machine Y is 75% more efficient than Machine Z. Machines X and Z, working together, can complete a certain task in 15 days. How many days will it take for Machines Y and Z, working together, to complete twice the amount of work, if Machine Z operates at only half of its normal efficiency?
More Time and work Questions
- 16 man can make a wall in 3 days. How many men required to complete the same work in 8 days ?
- A man’s average income for the first 3 months is 12% of his total income. For the next 6 months the average monthly income was Rs. 25,400. His total income...
- A completes 37.5% of a task in 9 days, B finishes 44.44% of the same task in 8 days, and C accomplishes 66.67% in 8 days. How many days will it take for A,...
- A team leader can do a job as fast as three members of the team working together. If one of the members can do the job in 5 hrs, the second one takes 10 hr...
- Ankit can complete a task in 16 days, while Bina alone can complete the same task in 24 days. Ankit starts the work alone and continues for 6 days. Then, B...
- Amit and Ankit can complete a job in 60 days. Working together with Sumit, they can finish it in 40 days. How many days would Sumit alone take to complete ...
- 3 women and 1 girl together can complete a work in 25 days. 2 women and 5 girls can together complete half of the same work in 9 days. Find the time taken ...
- A, B and C can complete a work as follows, (A + B) in 12 days, (B + C) in 15 days, and (A + C) in 20 days. In how many days can A alone complete the work?
- Rahul can complete a project in 50 days, while Karan can finish the same project in 75 days. Rahul starts working alone, and after 30 days, Karan joins him...
- Ratio of the work done by P, Q and R in one day is 7:4:9 respectively. They all together can complete the work in 44 days. Q and R worked on it for 30 days...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)