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Only a few Buses are Trains (I) + All Trains are Helicopters (A) → Some Buses are Helicopters (I). Hence conclusion I follows.
Few Cars are Buses (I) + Only a few Buses are Trains (I) → No conclusion. Hence conclusion II does not follow.
Only a few Buses are Trains → All Trains can be Buses (A). Hence conclusion III does not follow.
From a point situated at some distance from the base of a pillar, the angle of elevation of the top of the pillar is found to be 45 degrees. After walki...
A boat is being rowed away from a cliff 270 m high. From the top of the cliff, the angle of depression of the boat changes from 60° to 45° in 2 minute...
The angle of elevation of an aeroplane from a point on the ground is 60°. After 20 seconds flight the elevation changes to 30°, if the aeroplane...
Find the angle of elevation of a 125 √ 3m tower's top from a point 125 m away from its base.
At a point 20 metres away from the base of a 20√3, metres high house, the angle of elevation of the top is
The length of the shadow of a vertical tower increases by 9 m on horizontal ground when the height of the sun changes from 45° to 30 ° , then fi...
A pole got broken by the wind whose top meets the ground at an angle of 30° at a distance of 45 meters from the foot. What was the total height of t...
The angle of elevation of a ladder leaning against a wall is 60° and the foot of the ladder is 5 m away from the wall. The length of the ladder
A man whose height is 1.5 metres is standing 24√3 metres away from a light pole. The angle of elevation from his head to the top of the light pole...