When was the H5N1 virus, which causes bird flu, first discovered?
The H5N1 virus, responsible for causing bird flu, was first identified in humans in Hong Kong in 1997.
The ratio of efficiencies of X and Y for doing a certain work is 5 ∶ 9. Working together, they can complete a work in 15 days. X alone will complete 6...
P and Q can complete a work in 26 days and 39 days, respectively. P, Q and R together can complete the work in 13 days. If R get a total wage of Rs. 585...
'Ajeet' has an efficiency that is 40% lower than 'Chirag's, where as 'Bittu' is 20% more efficient than 'Chirag'. The time difference between 'Bittu' an...
‘A’ and ‘B’ can do a piece of work in 30 days and 40 days, respectively. They started working together but ‘A’ left after 9 days. Find the t...
‘A’ and ‘B’ can do a piece of work in 20 days and 40 days, respectively. If they started the work together and worked on it for 6 days, then fin...
P alone can finish a piece of work ‘M’ in 6 days while Q takes 3 days to finish it alone. P, Q and R working together can finish the work ‘N’ wh...
A contractor hired 80 workers to complete a work in 60 days. After 40 days, it was found that only half of the work was completed. Find the number of ex...
X can do a piece of work in 30 days. He worked at it for 5 days and then Y finished it in 20 days. In how many days can X and Y together finish the work?
8 children and 6 women together can complete a piece of work in 10 days and work done by a children in one day is one-third of the work done by a women ...
Abhay and Bhuvan working together can complete a sales target in 24 days. Bhuvan and Chikku working together can finish the same sales target in 32 days...
