Question
A and B together can complete a piece of work in 10
days. A alone can complete the work in 15 days. How many days will B take to complete the work alone?Solution
Let the total work be 1 unit. A’s efficiency = 1/15 (work per day). A and B together = 1/10 (work per day). B's efficiency = (1/10) - (1/15) = (3 - 2)/30 = 1/30 (work per day). Thus, B alone can complete the work in 30 days.
Which of the following element is indirectly related with drought resistance?
A situation when the rainfall deficiency is 25% or more of long term average, it is classified as
The Culturable Command Area (CCA) for a minor irrigation project is …………
A day is considered as rainy day when ………………………rains during 24 hours.
Main mechanism by which gaseous exchange occur between soil and atmosphere is
Which of the following crop is used for flax and oil both?
Which of the following type of monsoon is also known as retreating monsoon?
The instrument used in meteorogical observatory used to measure the rainfall
National Initiative on Climate Resilient Agriculture (NICRA) started in which year?
The excess of which of the following gases causes acid rain in the environment?
