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Magnesium is only metallic element in chlorophyll
A can do a piece of work in 15 days, B is 25% more efficient than A, and C is 40% more efficient than B. A and C work together for 3 days and then C lea...
A can complete a piece of work in 10 days. B in 15 days and C in 20 days. A and C worked together for two days and then A was replaced by B. In how many...
Komal and Seema individually can complete a task in ‘2a’ hours and ‘5a’ hours respectively. If they together can complete half of the work in 5...
A, B and C can complete the whole work in 20 days. A starts the work and works for ‘x’ days while B and C complete the remaining 3/5 of the ...
‘A’ and ‘B’ can do a piece of work in 17 days and 34 days, respectively. They started working together but ‘A’ left after 4 days. Find the t...
A man can complete a task in 20 days, a woman can finish it in 30 days, and a boy can do the same task in 60 days. To complete the task in just 3 days, ...
A can do a piece of work in 21 days and B in 28 days. If they together work on it for 5 days, then the fraction of the work that is left is :
‘A’ and ‘B’ can complete a certain work in 18 days and 20 days, respectively. They started working together and worked till completion of the wo...
A can complete a task in 10 days, and B can complete it in 15 days. After 3 days of working together, B leaves. How many more days will A take to finis...
I and J together complete a piece of work in 20 days. If I alone can do it in 50 days, how many days will J alone take?
