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Pyramid of energy is always upright as there is always a gradual decrease in energy content at every successive tropic level from producer to top consumer.
A and B together, B and C together and A and C together can complete a piece of work in 14 days, 15 days and 18 days respectively. Find the ratio of the...
A company hires workers A, B, and C to finish a project. A can complete the project in 30 days, B can do it in 24 days, and C can complete it in 20 days...
A pipe can fill a tank in 12 hours, while a second pipe can empty it in 18 hours. If both pipes are opened at the same time, how long will it take to fi...
Ravi and Sita together can complete a piece of work in 150 days and 3 minutes, while Sita and Ramesh together can complete the same work in 90 days and ...
'A' and 'B' can together complete a job in 15 days. If 'B' alone can finish 50% of the job in 20 days, how long would it take 'A' alone to complete the ...
A and B together can complete a piece of work in 48 days while B and C together can complete the same work in 58 days. All of three together can complet...
A group of 'x' men can finish a job in 46 days. If 8 additional men had joined the group, they could have completed the same job 16 days earlier. Assumi...
Aamir is twice as efficient a worker as Bender and together they can complete a work in 42 days. In how many days will Aamir alone complete the same work?
Akhil and Nikhil together can complete a work in 9 days while Nikhil alone takes 12 days to complete 50% of the work. If the efficiency of Sachin is 20%...
A’ and ‘B’ together can complete a work in 20 days while ‘A’ takes 25 days to complete the same work alone. If ‘C’ is 60% more efficient t...