Question

Annie is three times the age of Brad and Brad is four years younger than Caitlin. The total of their three ages is 39 years. How old is Annie ?

Answer 1

Answer:

annie 21 years

Step-by-step explanation:

Let Annie='A' ,Brad='B and caitlin='C'

Given,

Annie is three times the age of Brad

A=3B

let A/B=3x/1x

Brad is four years younger than Caitlin.

we know brad is 1x

caitalin-Brad=4

C=1x+4

The total of their three ages is 39 years. How old is Annie ?

3x+1x+1x+4=39

5x+4=39

5x=35

x=7

Annie's age is 3*x=3*7=>21 years