WEBVTT
00:00:00.710 --> 00:00:04.340
Suppose the number of rabbits doubles every year on Danielâ€™s farm.
00:00:04.900 --> 00:00:10.030
If he currently has six rabbits, how many will Daniel have after four years?
00:00:10.490 --> 00:00:14.220
So we know that Danielâ€™s farm began with six rabbits.
00:00:14.650 --> 00:00:18.210
And after one year, the number of rabbits should double.
00:00:18.640 --> 00:00:21.230
So we should multiply by two every year.
00:00:21.780 --> 00:00:23.580
So he now has 12 rabbits.
00:00:24.150 --> 00:00:28.670
After another year goes by, so the second year, the number of rabbits double.
00:00:29.170 --> 00:00:30.890
And he has 24 rabbits.
00:00:31.390 --> 00:00:35.860
After another year goes by, which will be the third year, the number of rabbits double.
00:00:35.860 --> 00:00:40.190
So now we have 48, because 24 times two is 48.
00:00:40.730 --> 00:00:44.980
Moving down here since we ran out of room, we need to pass by one more year.
00:00:45.010 --> 00:00:46.310
So this will be the fourth year.
00:00:46.670 --> 00:00:48.540
And we need to double the amount of rabbits.
00:00:48.540 --> 00:00:56.160
So 48 times two would mean that, after four years, Daniel will have 96 rabbits on his farm.