the is Answer:
82
Step-by-step explanation:
We observe that difference between first and second terms =12−5=7
Similarly difference between second and third terms =19−12=7
It shows that the given sequence of numbers is an arithmetic progression with common difference equal to 7.
We know that nth term of an AP whose first term is a1 and whose common difference is d is given by
an=a1+(n–1)d
To find the 12th term, insert given values in the general expression
a12=5+(12–1)7
a12=5+(11)7=5+77=82