self Maths Puzzle

From a point P on a level ground, the angle of elevation of the top tower is 30º. If the tower is 100 m high, the distance of point P from the foot of the tower is:

A. 149 m B. 156 m
C. 173 m D. 200 m

Read Solution (Total 1)

C
tan30=p/b
tan30=100/b
b=100root3
6 years agoHelpfull: Yes(0) No(0)

self Other Question

An observer 1.6 m tall is 203 away from a tower. The angle of elevation from his eye to the top of the tower is 30º. The heights of the tower is:

A. 21.6 m B. 23.2 m
C. 24.72 m D. None of these A bank offers 5% compound interest calculated on half-yearly basis. A customer deposits Rs. 1600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is:

A. Rs. 120 B. Rs. 121
C. Rs. 122 D. Rs. 123