Question

Alex started a new social media account,which he used to post pictures of cute animals. On the first day he only had 8 followers.a However his account became popular very quickly and the numbers of the followers tripled everyday. Identify how many followers he had in the 5th day.

Answer 1

624

Explanation:

648 i used a calculator

Answer 2

648 followers

Explanation:

Let first day=a1

Tripled followers everyday

Second day=a2=a1×3

Third day=a3=a2*3

Fourth day=a4=a3*3

Fifth day=a5=a4*3

a=8 followers

a2=a1×3

=3*8

=24 followers

a3=a2*3

=24*3

=72 followers

a4=a3*3

=72*3

=216 followers

a5=a4*3

=216*3

=648 followers

On the fifth day, Alex will have a total of 648 followers on his new social media account.