Here is a question I am having problems with. A 16 foot tall adult giraffe standing next to a petrified stump casts a 8ft shadow. If the petrified stump is 6ft tall then how long is its shadow?
If a 16 foot tall giraffe casts an 8 foot tall shadow, then, by the same ratio, a 6 foot tall stump casts a 3 foot tall shadow.
16/8 = 6/x
Cross multiply: 16·x = 6·8 ---> 16x = 48 ---> x = 3
