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Let the total work = 114 units Efficiency of horse who can complete the work in 38 hours = 114/38 = 3 units/hour Efficiency of horse who can complete the work in 57 hours = 114/57 = 2 units/hour Therefore, time taken by both horses to complete the work together = 114/(3 + 2) = 22.8 hours Therefore, time taken by the elephant to complete the work = 22.8 hours
The branch of Horticulture that deals with the cultivation of vegetables is called
Highest nitrogen content among edible oil cakes is found in
Tungro disease of rice is transmitted by which insect?
How many pollen grains are developed from a pollen mother cell?
The relationship between two organisms, where both of them benefit from each other is called:
Opium is obtained from
Which of the following is known as King of Spices?
Epiricania melanoleuca, an ectoparasitoid is effective against
The three Tier system or The Panchayati Raj system was first started at
What is the primary goal of watershed Management?