P rsquo s height is 5 ft and his shadow rsquo s height is 7 ft long He measured the shadow of his sc...........

Quantitative Aptitude (RRB NTPC) Height and Distance

P’s height is 5 ft. and his shadow’s height is 7 ft long. He measured the shadow of his school’s building to be 42 ft. Find the height of the building

50 ft

36 ft

30 ft

32 ft

छोटे Courses बड़े Results

Master Height and Distance

Prepare through Micro-courses

Try Now

Explanation:

Let θ be the angle of elevation of the sun.
Therefore, tan θ= height of the man/length of man’s shadow = height of the building / length of its shadow
Height of the building = (5/7) x 42 = 30ft.