11 men can complete a work in 15 days. If 15 men work at the same rate, in how many days will the work be completed? MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Time and Work Questions
Question #1
Report Error
A work could be completed in 100 days by some workers. However, due to the absence of 10 workers, it was completed in 110 days. Find the original number of workers.
Correct Answer: Option C
Explanation:
Let the original number of workers be x. Using M1 * D1 = M2 * D2: x * 100 = (x - 10) * 110 => 100x = 110x - 1100 => 10x = 1100 => x = 110.
Let the original number of workers be x. Using M1 * D1 = M2 * D2: x * 100 = (x - 10) * 110 => 100x = 110x - 1100 => 10x = 1100 => x = 110.
This question belongs to:
Maths
Time and Work
Question #2
Report Error
A can complete a work in 13 days and B can complete the same work in 18 days. If they work together, in how many days will the work be completed?
Correct Answer: Option B
Explanation:
Combined rate = 1/13 + 1/18. Time = 1 ÷ combined rate = 7.55 days.
Combined rate = 1/13 + 1/18. Time = 1 ÷ combined rate = 7.55 days.
This question belongs to:
Maths
Time and Work
Question #3
Report Error
A can complete a work in 24 days and B in 45 days. If both work together, in how many days will the work be completed?
Correct Answer: Option D
Explanation:
Combined rate = 1/24 + 1/45. Time = 15.65 days.
Combined rate = 1/24 + 1/45. Time = 15.65 days.
This question belongs to:
Maths
Time and Work
No comments yet. Be the first to start the discussion!