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DDT (dichlorodiphenyltrichloroethane) is considered a primary pollutant. It is a persistent organic pollutant that can bioaccumulate in the food chain and have harmful effects on both wildlife and humans. DDT was widely used as an insecticide, but its use has been heavily restricted or banned in many countries due to its environmental and health impacts.
‘A’ and ‘B’ can complete a certain work in 20 days and 10 days, respectively. They started working together and worked till completion of the wo...
A can finish a task by himself in 25 days, whereas B can finish the same task by himself in 10 days. A begins the task but stops after 5 days, at which ...
Raju, Shubham, and Mohan can work for 15 days, 20 days and 25 days respectively. In how many days will the work be finished if they do it on alternate d...
It takes "Aditi" 12 days alone herself to complete a task. The differences in efficiency between "Beena" and "Aditi" are 20% and 25%, respectively. "Adi...
Abhijeet' is 50% less efficient than 'Vivek' and can achieve 25% of the sales target in 8 days.'Chirag' takes 4 days more than 'Vivek' to achieve the ta...
The efficiency ratio of workers A and B is 15:17. If both A and B collaboratively finish a task in 30 days, how long would it take for A to complete the...
A can complete a job in 20 hours. B alone can complete the same job in 15 hrs. A work for 9 hrs and then the remaining job is completed by B. How many h...
‘A’ and ‘B’ can do a piece of work in 25 days and 30 days, respectively. If they started the work together and worked on it for 8 days, then fin...
