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Question 1
If 26 men can do a task in 40 days if they work 9 hours per day, how many men are required to complete the task in 13 days if they work 10 hours?
Question 2
A can harvest a field in 14 days. B can do the same work in 16 days. C can do the same work in 7 days. In how many days will they together harvest the field?
Question 3
A can harvest a field in 16 days. B can do the same work in 14 days. C can do the same work in 5 days. In how many days will they together harvest the field?
Question 4
A, B and C can independently complete a work in 17, 18 and 19 days respectively. B and C start the work together, but A joins them after 3 days. In how many days will the work be completed?
$7{43/971}$ days.
$8{43/971}$ days.
$9{43/971}$ days.
$10{43/971}$ days.
Ans: a
Use the shortcut formula. If A, B, C can independently complete the job in x, y and z days, and A joins after n days, the work is completed in ${xyz}/{xy + yz + zx}$ × $(1 + n/x)$ days. Putting the various values x = 17, y = 18, z = 19, n = 3, and simplifying, we get ${6840/971}$, which is same as: $7{43/971}$.
Question 5
A and B can complete a job in 24 and 72 days. They start together but A leaves after working for 10 days. How long would B take to finish the job counting from the day both A and B started together?
This Blog Post/Article "Time and Work Quiz Set 005" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2020-02-07. Published on: 2016-05-03