Question
Boat ‘A’ can cover 180 km in still water in 12
hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 3:4 and the speed of stream is 3 km/hr then find the time taken by boat ‘B’ to cover the 253 km in downstream.Solution
Speed of boat ‘A’ in still water = 180/12 = 15 km/hr Speed of boat ‘B’ in still water = 15 × (4/3) = 20 km/hr Downstream speed of boat ‘B’ = 20 + 3 = 23 km/hr Time taken by boat ‘B’ to cover 253 km in downstream = 253/23 = 11 hours
Mendel is famous for
The hydraulic conductivity of sandy soil is among soil constituents
Under PMFBY the premium % to be paid by Farmer of the total cost for kharif season crop?
In which method of planting maximum number of plants per unit area can be accommodated
Antioxidant intake reduces risk of
Which of the following is a key agronomic practice in Integrated Pest Management (IPM) aimed at preventing pest outbreaks?
The study of soil from the stand point of higher plants is known as……………………….
A situation when the rainfall deficiency is 25% or more of long term average, it is classified as
Which of the following is the scientific name of lesser grain borer:
Full slip stage is the indication of maturity in which of the following crops?
