Question
A’ and ‘B’ together can complete a work in 20 days
while ‘A’ takes 25 days to complete the same work alone. If ‘C’ is 60% more efficient than ‘B’, then find the time taken by ‘C’ alone to complete the whole work.Solution
Let the total work = 100 units Efficiency of (A + B) = 100/20 = 5 units/day Efficiency of ‘A’ = 100/25 = 4 unit/day Therefore, efficiency of ‘B’ = 5 – 4 = 1 units/day Efficiency of ‘C’ = 1.6 × 1 = 1.6 units/day Required time taken = 100/1.6 = 62.5 days
The term “heterosis” was first coined by:
What is the critical irrigation stage in rice where moisture deficiency can lead to maximum reduction in grain yield?
Sols which are rich in volcanic ash?
Part of the cell wall of endodermal cells prevents water from moving into the cell is called
Non ionizing radiation includes
Which of the following is a major weed of wheat fields that closely resembles the crop during the early growth stages, making manual identification diff...
Arrange these Govt. schemes as per year of start (old to recent)
(A) Community Development Program
(B) Training and Visit Program
(...
Which one of the following is the resultant of a thin cloud of varying size found on the surface of the earth by condensation of atmospheric vapour?
Identify the artificial growth inhibitor from below.
What is the primary purpose of drainage systems in Agriculture?
