A boat is moving towards a pool. Initially angle of elevation of pool is `30^@` and after 10 minutes its `60^@`. Determine how much time it takes to reach pool.

From a boat, which is moving towards a bridge, the angle of elevation of bridge is 30^(@) . After 10 minutes, the angle of elevation becomes 60^(@) . Find how much more time will take the boat to reach at the bridge?

From a boat, which is moving towards a bridge, the angle of elevation of bridge is 30^(@) . After 10 minutes, the angle of elevation becomes 60^(@) . Find how much more time will take the boat to reach at the bridge?

A man watches a boat travelling towards him while standing on a top. Its deviation is 30^o . After 20sec deviation changes to 45^o . Then how much time it talkes to reach bottom of the tower ?

Hose A and B can fill a pool in 5 and 10 minutes respectivley. After 2 minutes, hose B gets blokced. How much time will hose A take to fill the remaining pool?

An observer on the top of a tree ,finds the angle of depression of a car moving towards the tree to be 30^@ .After 3 minutes this angle becomes 60 ^@ .After how much more time , the car will reach the tree ?

An observer on the top of a tree ,finds the angle of depression of a car moving towards the tree to be 30^@ .After 3 minutes this angle becomes 60 ^@ .After how much more time , the car will reach the tree ?