Question
A alone can assemble 40 mobile phones in 10 hours, while B alone can assemble the same number in 15 hours. Working together, in how many hours can A and B assemble 120 mobile phones?
More Time and work Questions
- 55 men can complete a piece of work in 12 days. 15 men started the same work and worked for 10 days, and then joined by ‘x’ more men such that the remainin...
- Two candles of same height can burn completely in 8 hours and 12 hours respectively. If both start burning at same time at their respective constant speed,...
- The ratio of time taken by P, Q and R to complete work alone is 4:5:2 respectively. If all three together complete the work in 8 days, then find in how man...
- If Pawan takes twice the time that Qureshi takes or three times the time that Raju takes to finish a task, and all three working together can complete it i...
- Two friends, Aman and Vivek started a project together. They worked together for the first 6 days, but only 30% of the project was completed. Therefore, bo...
- A pipe can fill a tank in 12 hours, while a second pipe can empty it in 18 hours. If both pipes are opened at the same time, how long will it take to fill ...
- Amit, Bheema, and Chetna can finish the task in 32 days, 24 days, and 30 days respectively. If they start the task together, and Bheema leaves 12 days befo...
- A, B and C can complete a work in 10 days, 15 days and 30 days respectively. They work together for 4 days and then A leaves. B and C complete the remainin...
- A can do a work in 6 days and B can do it in 12 days. They work together for 2 days. The remaining work is completed by A alone in:
- ‘A’ is 50% less productive compared to ‘B’, who is 20% more productive than ‘C’. Together, they can finish a task in 36 days. After ‘B’ and ‘C’ have worked...
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)