Question
An elephant can do a work as fast as two horses ‘A’
and ‘B’ can do it by working together. If horse ‘A’ alone can complete the work in 9 hours and horse ‘B’ in 18 hours, then find the time taken by elephant to complete the work.Solution
Let the total work = 18 units Efficiency of horse who can complete the work in 9 hours = 18/9 = 2 units/hour Efficiency of horse who can complete the work in 18 hours = 18/18 = 1 units/hour Therefore, time taken by both horses to complete the work together = 18/(2 + 1) = 6 hours Therefore, time taken by the elephant to complete the work = 6Â hours
The Culturable Command Area (CCA) for a minor irrigation project is …………
National Initiative on Climate Resilient Agriculture (NICRA) started in which year?
A situation when the rainfall deficiency is 25% or more of long term average, it is classified as
The Total amount of annual precipitation in the country in mm is
The instrument used in meteorogical observatory used to measure the rainfall
Which of the following sheep breeds is most suitable to produce finest carpet wool in
Which of the following type of monsoon is also known as retreating monsoon?
A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation. Which one of the follow...
A day is considered as rainy day when ………………………rains during 24 hours.
Which of the following element is indirectly related with drought resistance?
