One site added 0.5 million new accounts everyday. At this rate how many days will it take to add 25 million new accounts

Answer 1

Site added 0.5 million acc each day

Let us suppose site added 0.5 million acc on day 1

on day 2 new 0.5 acc would be added and 0.5 acc from day 1 are already present so total acc would be 0.5+0.5=1 million

So 1 million acc are added every 2 days

in this pattern 25 million acc would be added in 50 days