It could be double, double, cut in half.
Chat with our AI personalities
40 5 10 20 40 80 160.......double the number each time.
1 x 5 = 5 5 x 10 = 50 ; 10 is 5+5 50 x 20 = 1000; 20 is 10+10 1000 x 40 = 40,000 ; 40 is 20 + 20 40,000 x 80 = 3,200,000; 80 is 40+40 therefore the next 2 numbers are 40,000 and 3,200,000
If you mean: 5, 10, 20, 40 then the following number is twice the previous number which will be 80
10
40/10 = 20/a 4= 20/a 20/4 = a a= 5