Question : A alone can complete a work in 25 days and B alone can complete the same work in 50 days. If both of them work together, then in 9 days what percentage work of the total work will be completed?
Option 1: 49%
Option 2: 60%
Option 3: 45%
Option 4: 54%
New: SSC MTS Tier 1 Answer key 2024 out
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 54%
Solution : Let the total work be 50 units (LCM of 25 and 50). Now, the efficiency of A = $\frac{50}{25}$ = 2 and the efficiency of B = $\frac{50}{50}$ = 1 So, A and B together in 1 day can do (2 + 1) = 3 units of work $\therefore$ In 9 days they will do (3 × 9) = 27 units of work. So, the required percentage = $\frac{27}{50}$ × 100 = 54% Hence, the correct answer is 54%.
Answer Key | Cutoff | Selection Process | Preparation Tips | Eligibility | Application | Exam Pattern
Question : P alone can complete a work in 25 days and Q alone can complete the same work in 50 days. If both of them work together, then in 12 days what percent work of the total work will be completed?
Question : M alone can complete a work in 50 days and N alone can complete the same work in 100 days. If both of them work together, then in 25 days what percentage work of the total work will be completed?
Question : A, B, and C together can complete a work in 5 days. A and B together can complete the same work in 6 days. C alone can finish the same work in how many days?
Question : X alone can complete a piece of work in 16 days, while Y alone can complete the same work in 24 days. They work on alternate days starting with Y. In how many days will 50% of the total work be completed?
Question : A alone can complete a work in 16 days and B alone can complete the same work in 96 days. In how many days both A and B together can complete the same work?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile