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Distance upstream= 36 km, time taken to row upstream = 3 hrs. 
Speed upstream = `36/3` =12 km/hr. Distance downstream= 51 km, time taken to row downstream = 3 hrs. Speed downstream = `51/3` = 17 km/hr. 
Man’s rate in still water = `1/2` (17+12) kmph = 14.5 kmph
An 80 gm NaOH is dissolved in 500 ml of water. What is molarity of the solution
Which scheme is the initiative of Central Government related to India's independence?
Given below are two statements:
Statement I: Organic manures contain a low amount of nutrients and are applied in large quantities
Agrostology refers to the study of
Availability of phosphorus is maximum at pH:
In the ATP-driven proton potassium exchange mechanism, the H+ ions are formed due to dissociation of
‘Kresek’ symptom is a characteristic symptom of which disease of rice?
What is the main objective of the Horticulture Mission for North East and Himalayan States (HMNEH)?
Which of the following is not the objective of puddling in rice
