Question
Who is recognized as the āFather of Soil Scienceā
and āFather of Modern Pedologyā?Solution
Dokuchaev is credited as the āFather of Soil Scienceā and āFather of Modern Pedologyā for his work on soil classification and the zonality concept. Jenny focused on soil formation equations, Liebig on agricultural chemistry, and Graham on colloids.
āMā is 60% more efficient than āNā. āNā started the work alone and worked for 20 days and after that āNā is replaced by āMā. If the ...
- If a group of 10 boys and 15 girls together can finish a task in 30 days, and a team of 5 girls alone can complete the same task in 120 days, how long will...
- A contractor is hired to complete a road in 40 days and initially employs 40 workers. After 24 days, he realizes that only one-third of the work has been c...
P and Q together can complete 75% of a work in 15 days while Q alone takes 40% more time than P and Q together to complete the whole work. Find the time...
Working together, A and B can do a certain work in 45 days. They work together for 10 days. They complete the remaining work in 28 days with the assista...
A fence is constructed using 900 wooden planks. āXā alone can place 10 planks per minute, while āYā alone can complete the fence in 100 minutes....
20 men take 15 days to finish some work. 24 women can finish the same work in 20 days. If the ratio of efficiencies of each man and woman is p:q, respec...
Virat can do a piece of work in 26 days and Sachin can do the same work in 39 days. If Virat works for 5 days and got Rs. 3000, and the remaining work w...
Ram can finish a task alone in 45 days, whereas Ram and Rahul working together can complete the same task in 12 days. If Rahul works on the task alone f...
A can complete a work in 15 days. B takes 6 days less than A to complete the same work. In how many days can both of them together complete 80% of the w...
Relevant for Exams:
