In a model of a ship, the mast is 9 cm high,while the mast of the actual ship is 12m high .If the length of the ship is 28m,how long is the model ship ?

As observed from the top of a 75 m high lighthouse from the sea-level, the angles of depression of two ships are 30^@ and 45^@ . If one ship is exactly behind the other on the same side of the lighthouse, find the distance between the two ships.

A man is standing on the deck of a ship, which is 8 m above water level. He observes the angle of elevation of the top of a hill as 60^@ and the angle of depression of the base of the hill as 30^@ . Calculate the distance of the hill,from the ship and the height of the hill.

A 5 m 60 cm high vertical pole casts a shadow 3 m 20 cm long. Find at the same time : the length of the shadow cast by another pole 10 m 50 cm high

A wall of length 10 m was to be built across an open ground. The height of the wall is 4 m and thickness of the wall is 24 cm. If this wall is to be built up with bricks whose dimensions are 24 cm × 12 cm × 8 cm, how many bricks would be required?

A man on the deck of a ship is 12 m above water level. He observes that the angle of elevation of the top of a cliff is 45^@ , and the angle of depression of the base is 30^@ . Calculate the distance of the cliff from the ship and the height of the cliff.

A man on the deck of a ship is 16 m above water level. He observes that the angle of elevation of the top of a cliff is 45^@ and the angle of depression of the base is 30^@ . Calculate the distance of the cliff from the ship and the height of the cliff.

A 5 m 60 cm high vertical pole casts a shadow 3 m 20 cm long. Find at the same time : the height of a pole which casts a shadow 5m long.