Asked by marjorie

A tower casts a shadow of 16m at the same time that a 2.5m post cast a shadow of 4m. How high is the tower?
Answered by Reiny
A simple ratio will do it:

h/16 = 2.5/4

solve for h
Answered by Ms. Sue
2.5/4 = x/16

Cross multiply and solve for x.