Let the total number of units of work =108 A and B can do in 18 hours so 108/18 =6 units each hour they both can do 6 units For 6 hours they both worked and so 36 units is done so 108-36=72 units of work is done by B alone in 36 hours I.e 72/36 = 2 units per day Therefore a+b=6 a=6-2 a=4 units per day If A worked alone then 108/4 =27 hours
Fingerling is the proper size for stocking in table fish production ponds. What is the ideal size of a fingerling ?
Sulphur dioxide is widely used to preserve:
Which of the following indicates a situation of hidden hunger in plants?
What has facilitated technology adoption in the farm sector in India?
An example of C4 crop is
Fishes able to tolerate different concentration of salinity known as
When something in the landscape is repeated with a standard interval, it is called
What is the required conversion period for an organic farm to be certified?
Atmospheric pressure is measured by
First irrigation commission was appointed in