alleryStart learning →A tower's top is seen at 60° from a canal bank, and at 30° from 20 m farther back. Canal width?
A30 m
B20 m
C10 m
D10√3 m
Answer & Solution
Correct answer: C. 10 m
With tower height h, h/√3 + 20 = h√3 gives h = 10√3, and the width is h/√3 = 10 m.
Keep practising Heights and Distances
Browse all Heights and Distances questions for SSC CGL, or explore more Quantitative Aptitude topics.
Related questions
Which ratio would you use to find a ladder's length from the height it reaches and its angA balloon 88.2 m high rises in view from 60° to 30° for a 1.2 m girl. How far does it drifA tower is 30 m high. At what distance from its foot is the top seen at 60° elevation?A tower is 100 m tall. How far from its foot must one stand on level ground to see the topA 6 m ladder makes 60° with the ground and leans on a window sill. How high is the sill abA 50 m tower is seen at 30° and 60° from opposite sides in line. Distance between the poinWhich value equals tan 30°?Which trigonometric ratio links a tower's height and the ground distance from its foot to