Aptitude - Height and Distance - Discussion

Discussion Forum : Height and Distance - General Questions (Q.No. 2)
2.
A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30° with the man's eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 60°. What is the distance between the base of the tower and the point P?
43 units
8 units
12 units
Data inadequate
None of these
Answer: Option
Explanation:

One of AB, AD and CD must have given.

So, the data is inadequate.

Discussion:
43 comments Page 3 of 5.

Diva said:   8 years ago
Elevation from man's eye so height of the man should also be given.

Karthick said:   8 years ago
I am not getting it, Please explain me.

Swati said:   7 years ago
I am not getting it, please explain in details.

K santhosh said:   7 years ago
Tel me the length of point of men standing to point A.

Harry grewal said:   7 years ago
No, the Information is inadequate. Moreover, the graph is also wrong.

The angle must be made from man's eye, not from the foot. The person is in standing position. Not laying on the ground.

Ankush sapehia said:   7 years ago
The Answer is D.

Jhanvi said:   7 years ago
The Answer should be 4 units.

Lokesh said:   7 years ago
Inadequate data. Some distance or meter should be there to predict the answer.

Jaidev said:   7 years ago
No, @Jhanvi.

If you take h as the height of the tower, b as the distance from P to the base of the tower and when the person walks to a new point lets say Q, so take x= distance from Q to base of the tower. Now solving these we have tan30=h/b and tan60=h/x. We are left with 3 unknowns and only two equations. Therefore the solution cannot be found.

Mamta puri said:   7 years ago
Please explain it briefly.


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