The shadow of a 3 m long stick is 4 m long. At the same time of the day, if the shadow of a flagstaff is 24 m long, how tall is the flagstaff?
18 m
Stick : shadow = 3 : 4. Flagstaff height : 24 = 3 : 4 → height = (3/4) × 24 = 18 m.