An electric pole, 14 meter high, casts a shadow of 10 meters. Find the height of a tree that casts a shadow of 15 meters under the similar conditions?
Answer & explanation
Correct answer: option 3
Ratio of length of electric pole : pole Shadow
= 14 : 10
= 7 : 5
In similar condition,
Ratio of length of tree : tree shadow also
= 7 : 5
Length of tree shadow = 15m
5R = 15
1R = 3
Length of tree = 7R = 7 × 3
= 21 m
The correct answer is Option (3) → 21 m