Let the total work = 240 units Then, efficiency of ‘A’ = (240/20) = 12 units/hour Work completed by ‘A’ alone in 15 hours = 12 × 15 = 180 units Remaining work = 240 – 180 = 60 units So, efficiency of ‘B’ = 60/20 = 3 units/hour Therefore, combined efficiency of ‘A’ and ‘B’ = 3 + 12 = 15 units/hour So, time taken by ‘A’ and ‘B’ together to complete the work = (240/15) = 16 hours
Which of the following mechanisms do not encourage cross pollination?
The average dry matter requirement of desi cow is ____ during dry period and ____ during lactating period.
The branch of Horticulture that deals with the cultivation of vegetables is called
The recently formed order with little profile development is termed as ………………………..
The application of organic manures in the soil helps in/tends to:
Thalamus of hypogynous ovary is
Tristeza virus is associated with .....
Tomato damping off is caused due to ____
Loose smut of wheat is caused by
What is the major symptom of damage caused by the Whitefly, Bemisia tabaci, on its host plants?