Question

In the diagram below, if AB = 25, AC = 15, and BD = 5, then find the length of DC.

Answer 1

Given the equation

`(BD)/(DC)=(AB)/(AC)`

then

`(5)/(DC)=(25)/(15)`
`(5*15)/(25)=DC`
`DC=(75)/(25)`
`DC=3`

The length of DC = 3

then correct answer is option d