A ) 18 years old
B) 19 years old
C) 27 years old
add three to kris' age to find Pat's age
Step-by-step explanation
Step 1
when Kris was 15 .how old was pat
find the rule
a) check if the difference between the ages is constant
it means Pat is 3 years older than Kriss
then
when Kris was .how old was pat
Step 2
when Pat was 22, How old was Kris
the difference between the ages is the same, 3
so
Step 3
when Pat was 30, How old was kris
replace
Step 4
wich choice best represents the rule
as we saw before,
add three to kris' age to find Pat's age