Question
Speed of current is equal to 20% of speed of boat in
still water. If the boat takes 4 hours to cover 120 km in still water, then find the time taken by the boat to cover 96 km in upstream.Solution
Speed of the boat in still water = 120 ÷ 4 = 30 km/h Speed of current = 30 × 0.20 = 6 km/h Therefore, upstream speed of the boat = 30 – 6 = 24 km/hr Required time taken = 96 ÷ 24 = 4 hours
Which chemical is used in seed treatment to protect maize seeds from shoot fly?
Urease is an important enzyme involved in nitrogen metabolism in plants, helping to convert urea into usable nitrogen compounds. Which nutrient is essen...
Among the following, who first used the term Nanotechnology?
Recently, Indian Agriculture Research Institute (IARI) successfully tested two new dwarf varieties of Kalanamak rice – Pusa Narendra Kalanamak 1638, 1...
In plant parasitic nematode contains a spear or stylet with which the nematode pierces the cell walls of its host and ingests the food:
FSSAI has been mandated by the FSS Act, 2006 for performing which of the  following functions
Which part of the engine is used to transmit power from the piston to the crankshaft?
Among the following options, which weed is categorized as a total root parasite, meaning it relies entirely on its host plant's roots for nutrients and ...
In regions with frequent rainfall and alternating wet and dry periods, what type of soil results from the leaching of bases and silica?
In rice, 'Dee-geo-woo-gen' is a source of
Relevant for Exams:
