Question A man sees the top of a tower from a point P. It makes an angle of elevation of 30° with the man’s eyes. If the height of the tower is 100 m, find the distance between man and tower? Type multiple_choice Option 57.8 m incorrect Option 110 m incorrect Option 173 m correct […]
Question The angle of elevation of the sun when the length of the shadow of a pole is equal to the height of the pole is? Type multiple_choice Option 45° correct Option 30° incorrect Option 60° incorrect Option 90° incorrect Solution Let ∠BAC = θ Let height of pole is h and length of the
Question The tops of two poles are connected by a wire. The heights of the poles are 10 m and 14 m respectively. If the wire makes a 30° angle with the horizontal, find the length of the wire? Type multiple_choice Option 7 m incorrect Option 7.5m incorrect Option 8m correct Option 8.5m incorrect Solution
Question The angle of elevation of the top of a tower at a point X is 30°. On walking 30 m towards the tower if the angle of elevation becomes 60° at point Y, find the height of the tower? Type multiple_choice Option 26 m correct Option 28 m incorrect Option 29 m incorrect Option
Question A man 1.5 meter tall is 30√3 meter away from a building. When he sees the top of building the angle of elevation is 30°. Find the height of the building? Type multiple_choice Option 31.5m correct Option 30 m incorrect Option 53.4m incorrect Option 48 m incorrect Solution: Let AD be the man and
Question A ladder is leaning against a wall. It makes a 60° angle with the wall. If the distance between foot of ladder and wall is 5.5 meters, find the length of the ladder. Type multiple_choice Option 9.5m incorrect Option 10m incorrect Option 10.5m incorrect Option 11m correct Solution Let BC be the wall and
Question Two ships are sailing in the sea on the two sides of a lighthouse. The angles of elevation of the top of the lighthouse observed from the ships are 30° and 45° respectively. If the lighthouse is 100m high, find the distance between the two ships. Type multiple_choice Option 155.80 m incorrect Option 157.80
Question The speed of a boat in still water is 5km/hr. If the speed of the boat against the stream is 3 km/hr, what is the speed of the stream? Type multiple_choice Option 1.5 km/hr incorrect Option 2 km/hr correct Option 2.5 km/hr incorrect Option 1 km/hr incorrect Solution Let the speed of stream =
Question A motorboat travels 16 km in 2 hours against the flow of river and travels next 8 km along the flow of the river in 20 minutes. How long will it take motorboat to travel 48 km in still water? Type multiple_choice Option 2.5 hours incorrect Option 3 hours correct Option 3.5 hours incorrect
Question A man can swim in still water at 8 km/hr. If the river is flowing at 2km/hr he takes 80 minutes to reach a place and return back, how far is the place? Type multiple_choice Option 4 km incorrect Option 3 km incorrect Option 4.5 km incorrect Option 5 km correct Solution : Let
