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Start learning 50% faster. Sign in now Let the height of the building be h. D the man standing on the top of the building. Now, from figure, AB = x and BC = y tan 60⁰ = h/y h = y√3 And tan 30⁰ = h/(x+y) 1/√3 = (y√3)/(x+y) 3y = x+y 2y = x y = x/2 Since, Time taken to cover a distance from A to B = 8 minutes ∴ Time taken to cover a unit distance = 8/x minutes For distance ‘y’ time taken = 8/x × y = 8/x × x/2 = 4 minutes.
.……… is an anaerobically fermented feed prepared from green fodder whenever the supply of green fodder is in plenty. It possesses all the characte...
Migratory birds use which part of digestive system to store days’ worth of food so that when migrating they do not need to find food?
Name the place which is used for feeding of calves, lambs, an piglets, but not used for adults?
Which color sticky traps are used for aphids and white fly?
In which disease post-mortem of the animal is not performed?
First interspecific cross was made by which of the following Scientist?
Muga silk is produced by _____
'Rut or Mast' is present in which species of animal ?
The goat breed which is famous for chevon, quality skin & breeding efficiency is?
Crazy Chick disease in poultry is caused due to the deficiency of which of the following?